First time I've heard of Flook. Very, very interesting, but agreed that it's a disconnect from Foursquare, Gowalla, and Brightkite. Good points on the user bas

First time I've heard of Flook. Very, very interesting, but agreed that it's a disconnect from Foursquare, Gowalla, and Brightkite. Good points on the user base, too. According to Compete data for November, Facebook is pulling in south of 130M unique visitors/month, and Twitter is pulling in around 22M. By comparison, Foursquare is pulling around 368K, Brightkite is around 228K, and Gowalla nearing 80K. Amazing what downtime in an airport can get you ;) There seems to be some evidence that users are willing to share their location with micro-conversations (the reason Mashable called Foursquare the Twitter of 2010), but unlike Twitter, none of these guys have really robust APIs built out. Hell, Gowalla still doesn't have one, and Foursquare only let's you grab at per-user data, not per-location (beyond 3h). I'm anxiously watching to see which network grabs the most users, and have my fingers crossed that the winner will have a way for the ecosystem around it to develop. Maybe it will be Twitter w/ Geo, but does that assume users will change their behavior and start using Twitter more while mobile? (see: Twitter usage over weekends. Most of the usage is us bored at work)