couldn't find a generic thread about blogs (apart from verbal's but don't wanna hijack that).
I just started this one with my friend http://caffeinatedperspectives.wordpress.com/ (it has a really silly name and it looks boring but we wanted to just started writing and do the rest later when we have time). It's mostly about sociology and things that are happening in 'the real world'. E.g. just posted something about food banks. It's not particularly well-written but in my imo, I make some good points.
Writing this stuff also made me think about how much discussions, and arguments, I've had on here have helped to develop my ideas. http://www.youtube.com/watch?v=PstrAfoMKlc&feature=kp (great video)
Tell us about your blog and post links!