I read alot of libertarian-leaning blogs. I am a bit embarassed to consider myself libertarian (because I have noticed alot of nuts seem attracted to the title) but blogs like these help change that bias of mine. I also have a blog: http://xyzaffair-americanruse.blogspot.com
The Reason Magazine Blog -http://www.reason.com/blog/
Andrew Sullivan-
http://andrewsullivan.theatlantic.com/the_daily_dish/
The Volokh Conspiracy- http://volokh.com/
Instapundit - http://www.instapundit.com
Cato-at-liberty- http://www.cato-at-liberty.org/
I have alot more bookmarked, but those blogs are my absolute favorites that I read everyday.