If you’re looking for intelligent stuff about Indiana politics, these guys are great:
http://advanceindiana.blogspot.com/
http://www.masson.us/blog/
http://www.takingdownwords.com/taking_down_words/
And on a national level:
http://www.democraticunderground.com/
http://www.goodasyou.org/
http://americablog.blogspot.com/
http://www.biggaypicture.com/
http://atrios.blogspot.com/