I wrote about one of my favorite people on the web, Andy Baio, and his quixotic efforts to bring the beloved social calendar Upcoming.org back online:
Upcoming had a follow / following model, later made famous by Twitter. It let users vote up the best events in a fashion later popularized by Digg and Reddit. And while its community was small by today's standards, Upcoming was among the first online social networks to serve a purpose beyond helping people meet people. The promise it showed in connecting people to local events led Yahoo to acquire Upcoming in 2005 for an undisclosed sum. But Yahoo fumbled the acquisition, and the service was later abandoned. In the intervening years, no other service has realized Baio's vision of a smart calendar, curated by people, that reliably informs you of fun, cool, weird things to do.