How Twitter Will Change the Way We Live

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This is not just a matter of people finding a new use for a tool designed to do something else. In Twitter's case, the users have been redesigning the tool itself. The convention of grouping a topic or event by the "hashtag" — #hackedu or #inauguration — was spontaneously invented by the Twitter user base (as was the convention of replying to another user with the @ symbol). The ability to search a live stream of tweets was developed by another start-up altogether, Summize, which Twitter purchased last year. (Full disclosure: I am an adviser to one of the minority investors in Summize.) Thanks to these innovations, following a live feed of tweets about an event — political debates or Lost episodes — has become a central part of the Twitter experience. But just 12 months ago, that mode of interaction would have been technically impossible using Twitter. It's like inventing a toaster oven and then looking around a year later and seeing that your customers have of their own accord figured out a way to turn it into a microwave. (See the 50 best inventions of 2008.)

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One of the most telling facts about the Twitter platform is that the vast majority of its users interact with the service via software created by third parties. There are dozens of iPhone and BlackBerry applications — all created by enterprising amateur coders or small start-ups — that let you manage Twitter feeds. There are services that help you upload photos and link to them from your tweets, and programs that map other Twitizens who are near you geographically. Ironically, the tools you're offered if you visit Twitter.com have changed very little in the past two years. But there's an entire Home Depot of Twitter tools available everywhere else.

As the tools have multiplied, we're discovering extraordinary new things to do with them. Last month an anticommunist uprising in Moldova was organized via Twitter. Twitter has become so widely used among political activists in China that the government recently blocked access to it, in an attempt to censor discussion of the 20th anniversary of the Tiananmen Square massacre. A service called SickCity scans the Twitter feeds from multiple urban areas, tracking references to flu and fever. Celebrity Twitterers like Kutcher have directed their vast followings toward charitable causes (in Kutcher's case, the Malaria No More organization).

Social networks are notoriously vulnerable to the fickle tastes of teens and 20-somethings (remember Friendster?), so it's entirely possible that three or four years from now, we'll have moved on to some Twitter successor. But the key elements of the Twitter platform — the follower structure, link-sharing, real-time searching — will persevere regardless of Twitter's fortunes, just as Web conventions like links, posts and feeds have endured over the past decade. In fact, every major channel of information will be Twitterfied in one way or another in the coming years:

News and opinion. Increasingly, the stories that come across our radar — news about a plane crash, a feisty Op-Ed, a gossip item — will arrive via the passed links of the people we follow. Instead of being built by some kind of artificially intelligent software algorithm, a customized newspaper will be compiled from all the articles being read that morning by your social network. This will lead to more news diversity and polarization at the same time: your networked front page will be more eclectic than any traditional-newspaper front page, but political partisans looking to enhance their own private echo chamber will be able to tune out opposing viewpoints more easily.

Searching. As the archive of links shared by Twitter users grows, the value of searching for information via your extended social network will start to rival Google's approach to the search. If you're looking for information on Benjamin Franklin, an essay shared by one of your favorite historians might well be more valuable than the top result on Google; if you're looking for advice on sibling rivalry, an article recommended by a friend of a friend might well be the best place to start.

Advertising. Today the language of advertising is dominated by the notion of impressions: how many times an advertiser can get its brand in front of a potential customer's eyeballs, whether on a billboard, a Web page or a NASCAR hood. But impressions are fleeting things, especially compared with the enduring relationships of followers. Successful businesses will have millions of Twitter followers (and will pay good money to attract them), and a whole new language of tweet-based customer interaction will evolve to keep those followers engaged: early access to new products or deals, live customer service, customer involvement in brainstorming for new products.

Not all these developments will be entirely positive. Most of us have learned firsthand how addictive the micro-events of our personal e-mail inbox can be. But with the ambient awareness of status updates from Twitter and Facebook, an entire new empire of distraction has opened up. It used to be that you compulsively checked your BlackBerry to see if anything new had happened in your personal life or career: e-mail from the boss, a reply from last night's date. Now you're compulsively checking your BlackBerry for news from other people's lives. And because, on Twitter at least, some of those people happen to be celebrities, the Twitter platform is likely to expand that strangely delusional relationship that we have to fame. When Oprah tweets a question about getting ticks off her dog, as she did recently, anyone can send an @ reply to her, and in that exchange, there is the semblance of a normal, everyday conversation between equals. But of course, Oprah has more than a million followers, and that isolated query probably elicited thousands of responses. Who knows what small fraction of her @ replies she has time to read? But from the fan's perspective, it feels refreshingly intimate: "As I was explaining to Oprah last night, when she asked about dog ticks ..."

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