Well I am on the 180 Degree Facebook group, and I don’t see nearly as much action there. It’s too diffuse and, Facebook threads, even more so than your usual forums threads, are more appropriate for blurbs rather than conversations. Tim Berners-Lee (the guy who actually did pretty much invent the World Wide Web) has called Facebook and sites like it “Silos”. They are “walled off” from the rest of the Internet. If you were to do a google search on 180degrees, you would not be able to see the Facebook threads. You have to join Facebook, and I completely understand why some people do not care to do that.
For better or worse, 180 Degrees has become much less accessible.