In a flammable New Yorker piece last month, Malcolm Gladwell argued that the revolution will not, in fact, be tweeted. Gladwell’s argument that social media isn’t enabling genuine political change elicited a predictable storm of protest – from Twitter co-founders

Back in 2005, when Tim O’Reilly saw HousingMaps.com, he called it “the first true Web 2.0 application.” The site, created by Paul Rademacher, was the first mash-up using Google Maps, and tied it in with Craigslist data. The