Paul Graham: Essays 2024年11月25日
Web 2.0
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本文探讨了Web 2.0的概念及其演变。最初,Web 2.0只是一个会议名称,并没有明确的含义。后来,它逐渐被赋予了新的内涵,包括将网络作为平台、民主化和用户体验等方面。文章分析了Web 2.0的起源、发展过程以及其核心特征,并探讨了Web 2.0时代创业和互联网发展的变化。作者认为,Web 2.0并非简单地代表网络的升级换代,而是反映了互联网发展的新趋势,例如Ajax技术的兴起、用户参与度的提升以及去中心化的趋势。

🤔 **Web 2.0的起源:**最初,Web 2.0只是一个会议名称,旨在强调网络的重要性,并没有明确的定义,最初被理解为“将网络作为平台”,即基于网络的应用。

🌱 **Web 2.0的核心要素:**Web 2.0包含了Ajax技术、民主化和用户体验等关键要素。Ajax使得网页应用更加流畅,类似于桌面应用程序;民主化体现在用户参与度提升,例如维基百科和Reddit等平台;用户体验的改善体现在网站设计更加人性化,避免过度品牌化和打扰用户。

🌐 **Web 2.0带来的改变:**Web 2.0推动了互联网的发展,例如,涌现出大量基于Ajax技术的Web应用,以及以用户为中心的平台,例如维基百科和Reddit等。此外,Web 2.0时代的创业公司更加注重技术和用户体验,而不是一味追求快速扩张。

📈 **Web 2.0与互联网泡沫:**Web 2.0时代与互联网泡沫时期相比,创业环境发生了变化,IPO市场不再像以前那样活跃,创业公司更加务实,融资策略也更加谨慎。

💡 **Web 2.0的民主化趋势:**Web 2.0强调用户参与和民主化,用户可以自由发布信息和表达观点,类似于Reddit和Digg等平台,用户参与度显著提升,也使得内容质量得到了有效筛选。

November 2005Does "Web 2.0" mean anything? Till recently I thought it didn't,but the truth turns out to be more complicated. Originally, yes,it was meaningless. Now it seems to have acquired a meaning. Andyet those who dislike the term are probably right, because if itmeans what I think it does, we don't need it.I first heard the phrase "Web 2.0" in the name of the Web 2.0conference in 2004. At the time it was supposed to mean using "theweb as a platform," which I took to refer to web-based applications.[1]So I was surprised at a conference this summer when Tim O'Reillyled a session intended to figure out a definition of "Web 2.0."Didn't it already mean using the web as a platform? And if itdidn't already mean something, why did we need the phrase at all?OriginsTim says the phrase "Web 2.0" firstarose in "a brainstorming session betweenO'Reilly and Medialive International." What is Medialive International?"Producers of technology tradeshows and conferences," according totheir site. So presumably that's what this brainstorming sessionwas about. O'Reilly wanted to organize a conference about the web,and they were wondering what to call it.I don't think there was any deliberate plan to suggest there was anew version of the web. They just wanted to make the pointthat the web mattered again. It was a kind of semantic deficitspending: they knew new things were coming, and the "2.0" referredto whatever those might turn out to be.And they were right. New things were coming. But the new versionnumber led to some awkwardness in the short term. In the processof developing the pitch for the first conference, someone must havedecided they'd better take a stab at explaining what that "2.0"referred to. Whatever it meant, "the web as a platform" was atleast not too constricting.The story about "Web 2.0" meaning the web as a platform didn't livemuch past the first conference. By the second conference, what"Web 2.0" seemed to mean was something about democracy. At least,it did when people wrote about it online. The conference itselfdidn't seem very grassroots. It cost $2800, so the only people whocould afford to go were VCs and people from big companies.And yet, oddly enough, Ryan Singel's articleabout the conference in Wired News spoke of "throngs ofgeeks." When a friend of mine asked Ryan about this, it was newsto him. He said he'd originally written something like "throngsof VCs and biz dev guys" but had later shortened it just to "throngs,"and that this must have in turn been expanded by the editors into"throngs of geeks." After all, a Web 2.0 conference would presumablybe full of geeks, right?Well, no. There were about 7. Even Tim O'Reilly was wearing a suit, a sight so alien I couldn't parse it at first. I sawhim walk by and said to one of the O'Reilly people "that guy looksjust like Tim.""Oh, that's Tim. He bought a suit."I ran after him, and sure enough, it was. He explained that he'djust bought it in Thailand.The 2005 Web 2.0 conference reminded me of Internet trade showsduring the Bubble, full of prowling VCs looking for the next hotstartup. There was that same odd atmosphere created by a large number of people determined not to miss out. Miss out on what?They didn't know. Whatever was going to happen—whatever Web 2.0turned out to be.I wouldn't quite call it "Bubble 2.0" just because VCs are eagerto invest again. The Internet is a genuinely big deal. The bustwas as much an overreaction asthe boom. It's to be expected that once we started to pull out ofthe bust, there would be a lot of growth in this area, just as therewas in the industries that spiked the sharpest before the Depression.The reason this won't turn into a second Bubble is that the IPOmarket is gone. Venture investorsare driven by exit strategies. The reason they were funding all those laughable startups during the late 90s was that they hopedto sell them to gullible retail investors; they hoped to be laughingall the way to the bank. Now that route is closed. Now the defaultexit strategy is to get bought, and acquirers are less prone toirrational exuberance than IPO investors. The closest you'll get to Bubble valuations is Rupert Murdoch paying $580 million for Myspace. That's only off by a factor of 10 or so.1. AjaxDoes "Web 2.0" mean anything more than the name of a conferenceyet? I don't like to admit it, but it's starting to. When peoplesay "Web 2.0" now, I have some idea what they mean. And the factthat I both despise the phrase and understand it is the surest proofthat it has started to mean something.One ingredient of its meaning is certainly Ajax, which I can stillonly just bear to use without scare quotes. Basically, what "Ajax"means is "Javascript now works." And that in turn means thatweb-based applications can now be made to work much more like desktopones.As you read this, a whole new generationof software is being written to take advantage of Ajax. Therehasn't been such a wave of new applications since microcomputersfirst appeared. Even Microsoft sees it, but it's too late for themto do anything more than leak "internal" documents designed to give the impression they're on top of thisnew trend.In fact the new generation of software is being written way toofast for Microsoft even to channel it, let alone write their ownin house. Their only hope now is to buy all the best Ajax startupsbefore Google does. And even that's going to be hard, becauseGoogle has as big a head start in buying microstartups as it didin search a few years ago. After all, Google Maps, the canonicalAjax application, was the result of a startup they bought.So ironically the original description of the Web 2.0 conferenceturned out to be partially right: web-based applications are a bigcomponent of Web 2.0. But I'm convinced they got this right by accident. The Ajax boom didn't start till early 2005, when GoogleMaps appeared and the term "Ajax" was coined.2. DemocracyThe second big element of Web 2.0 is democracy. We now have severalexamples to prove that amateurs can surpass professionals, when they have the right kind of system to channel their efforts. Wikipediamay be the most famous. Experts have given Wikipedia middlingreviews, but they miss the critical point: it's good enough. And it's free, which means people actually read it. On the web, articlesyou have to pay for might as well not exist. Even if you were willing to pay to read them yourself, you can't link to them. They're not part of the conversation.Another place democracy seems to win is in deciding what counts asnews. I never look at any news site now except Reddit.[2] I know if something majorhappens, or someone writes a particularly interesting article, it will show up there. Why bother checking the front page of anyspecific paper or magazine? Reddit's like an RSS feed for the wholeweb, with a filter for quality. Similar sites include Digg, a technology news site that'srapidly approaching Slashdot in popularity, and del.icio.us, the collaborativebookmarking network that set off the "tagging" movement. And whereasWikipedia's main appeal is that it's good enough and free, thesesites suggest that voters do a significantly better job than humaneditors.The most dramatic example of Web 2.0 democracy is not in the selectionof ideas, but their production. I've noticed for a while that the stuff I read on individual people'ssites is as good as or better than the stuff I read in newspapersand magazines. And now I have independent evidence: the top linkson Reddit are generally links to individual people's sites rather than to magazine articles or news stories.My experience of writingfor magazines suggests an explanation. Editors. They control thetopics you can write about, and they can generally rewrite whateveryou produce. The result is to damp extremes. Editing yields 95thpercentile writing—95% of articles are improved by it, but 5% aredragged down. 5% of the time you get "throngs of geeks."On the web, people can publish whatever they want. Nearly all ofit falls short of the editor-damped writing in print publications.But the pool of writers is very, very large. If it's large enough,the lack of damping means the best writing online should surpass the best in print.[3] And now that the web has evolved mechanismsfor selecting good stuff, the web wins net. Selection beats damping,for the same reason market economies beat centrally planned ones.Even the startups are different this time around. They are to the startups of the Bubble what bloggers are to the print media. Duringthe Bubble, a startup meant a company headed by an MBA that was blowing through several million dollars of VC money to "get bigfast" in the most literal sense. Now it means a smaller, younger, more technical group that just decided to make something great. They'll decide later if they want to raise VC-scale funding, and if they take it, they'll take it ontheir terms.3. Don't Maltreat UsersI think everyone would agree that democracy and Ajax are elementsof "Web 2.0." I also see a third: not to maltreat users. Duringthe Bubble a lot of popular sites were quite high-handed with users.And not just in obvious ways, like making them register, or subjectingthem to annoying ads. The very design of the average site in the late 90s was an abuse. Many of the most popular sites were loadedwith obtrusive branding that made them slow to load and sent theuser the message: this is our site, not yours. (There's a physicalanalog in the Intel and Microsoft stickers that come on somelaptops.)I think the root of the problem was that sites felt they were givingsomething away for free, and till recently a company giving anythingaway for free could be pretty high-handed about it. Sometimes itreached the point of economic sadism: site owners assumed that themore pain they caused the user, the more benefit it must be to them. The most dramatic remnant of this model may be at salon.com, where you can read the beginning of a story, but to get the rest you havesit through a movie.At Y Combinator we advise all the startups we fund never to lordit over users. Never make users register, unless you need to inorder to store something for them. If you do make users register, never make them wait for a confirmation link in an email; in fact,don't even ask for their email address unless you need it for somereason. Don't ask them any unnecessary questions. Never send thememail unless they explicitly ask for it. Never frame pages youlink to, or open them in new windows. If you have a free version and a pay version, don't make the free version too restricted. Andif you find yourself asking "should we allow users to do x?" just answer "yes" whenever you're unsure. Err on the side of generosity.In How to Start a Startup I advised startupsnever to let anyone fly under them, meaning never to let any othercompany offer a cheaper, easier solution. Another way to fly low is to give users more power. Let users do what they want. If you don't and a competitor does, you're in trouble.iTunes is Web 2.0ish in this sense. Finally you can buy individualsongs instead of having to buy whole albums. The recording industryhated the idea and resisted it as long as possible. But it wasobvious what users wanted, so Apple flew under the labels.[4]Though really it might be better to describe iTunes as Web 1.5. Web 2.0 applied to music would probably mean individual bands givingaway DRMless songs for free.The ultimate way to be nice to users is to give them something forfree that competitors charge for. During the 90s a lot of people probably thought we'd have some working system for micropayments by now. In fact things have gone in the other direction. The most successful sites are the ones that figure out new ways to give stuffaway for free. Craigslist has largely destroyed the classified adsites of the 90s, and OkCupid looks likely to do the same to theprevious generation of dating sites.Serving web pages is very, very cheap. If you can make even a fraction of a cent per page view, you can make a profit. Andtechnology for targeting ads continues to improve. I wouldn't besurprised if ten years from now eBay had been supplanted by an ad-supported freeBay (or, more likely, gBay).Odd as it might sound, we tell startups that they should try tomake as little money as possible. If you can figure out a way toturn a billion dollar industry into a fifty million dollar industry,so much the better, if all fifty million go to you. Though indeed,making things cheaper often turns out to generate more money in theend, just as automating things often turns out to generate morejobs.The ultimate target is Microsoft. What a bang that balloon is goingto make when someone pops it by offering a free web-based alternative to MS Office.[5]Who will? Google? They seem to be taking theirtime. I suspect the pin will be wielded by a couple of 20 year oldhackers who are too naive to be intimidated by the idea. (How hardcan it be?)The Common ThreadAjax, democracy, and not dissing users. What do they all have in common? I didn't realize they had anything in common till recently,which is one of the reasons I disliked the term "Web 2.0" so much.It seemed that it was being used as a label for whatever happenedto be new—that it didn't predict anything.But there is a common thread. Web 2.0 means using the web the wayit's meant to be used. The "trends" we're seeing now are simplythe inherent nature of the web emerging from under the broken modelsthat got imposed on it during the Bubble.I realized this when I read an interview withJoe Kraus, the co-founder of Excite.[6] Excite really never got the business model right at all. We fell into the classic problem of how when a new medium comes out it adopts the practices, the content, the business models of the old medium—which fails, and then the more appropriate models get figured out.It may have seemed as if not much was happening during the yearsafter the Bubble burst. But in retrospect, something was happening:the web was finding its natural angle of repose. The democracy component, for example—that's not an innovation, in the sense ofsomething someone made happen. That's what the web naturally tendsto produce.Ditto for the idea of delivering desktop-like applications over theweb. That idea is almost as old as the web. But the first time around it was co-opted by Sun, and we got Java applets. Java hassince been remade into a generic replacement for C++, but in 1996the story about Java was that it represented a new model of software.Instead of desktop applications, you'd run Java "applets" deliveredfrom a server.This plan collapsed under its own weight. Microsoft helped kill it,but it would have died anyway. There was no uptake among hackers.When you find PR firms promotingsomething as the next development platform, you can be sure it'snot. If it were, you wouldn't need PR firms to tell you, because hackers would already be writing stuff on top of it, the way sites like Busmonster used Google Maps as aplatform before Google even meant it to be one.The proof that Ajax is the next hot platform is that thousands of hackers have spontaneously started building things on topof it. Mikey likes it.There's another thing all three components of Web 2.0 have in common.Here's a clue. Suppose you approached investors with the followingidea for a Web 2.0 startup: Sites like del.icio.us and flickr allow users to "tag" content with descriptive tokens. But there is also huge source of implicit tags that they ignore: the text within web links. Moreover, these links represent a social network connecting the individuals and organizations who created the pages, and by using graph theory we can compute from this network an estimate of the reputation of each member. We plan to mine the web for these implicit tags, and use them together with the reputation hierarchy they embody to enhance web searches.How long do you think it would take them on average to realize thatit was a description of Google?Google was a pioneer in all three components of Web 2.0: their corebusiness sounds crushingly hip when described in Web 2.0 terms, "Don't maltreat users" is a subset of "Don't be evil," and of courseGoogle set off the whole Ajax boom with Google Maps.Web 2.0 means using the web as it was meant to be used, and Googledoes. That's their secret. They're sailing with the wind, instead of sitting becalmed praying for a business model, like the print media, or trying to tack upwind by suing their customers, like Microsoft and the record labels.[7]Google doesn't try to force things to happen their way. They try to figure out what's going to happen, and arrange to be standing there when it does. That's the way to approach technology—and as business includes an ever larger technological component, theright way to do business.The fact that Google is a "Web 2.0" company shows that, whilemeaningful, the term is also rather bogus. It's like the word"allopathic." It just means doing things right, and it's a bad sign when you have a special word for that.Notes[1]From the conferencesite, June 2004: "While the first wave of the Web was closely tied to the browser, the second wave extends applications across the web and enables a new generation of services and businessopportunities." To the extent this means anything, it seems to beabout web-based applications.[2]Disclosure: Reddit was funded by Y Combinator. But althoughI started using it out of loyalty to the home team, I've become agenuine addict. While we're at it, I'm also an investor in!MSFT, having sold all my shares earlier this year.[3]I'm not against editing. I spend more time editing thanwriting, and I have a group of picky friends who proofread almosteverything I write. What I dislike is editing done after the fact by someone else.[4]Obvious is an understatement. Users had been climbing in through the window for years before Apple finally moved the door.[5]Hint: the way to create a web-based alternative to Office maynot be to write every component yourself, but to establish a protocolfor web-based apps to share a virtual home directory spread acrossmultiple servers. Or it may be to write it all yourself.[6]In Jessica Livingston'sFounders atWork.[7]Microsoft didn't sue their customers directly, but they seem to have done all they could to help SCO sue them.Thanks to Trevor Blackwell, Sarah Harlin, Jessica Livingston, PeterNorvig, Aaron Swartz, and Jeff Weiner for reading drafts of this, and to theguys at O'Reilly and Adaptive Path for answering my questions.

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