I'm lacking good progressive voices that I trust. Rather, I trust many of them to give me a sense of where the Democratic party in the US is heading, but not to reliably report the strengths and weaknesses of their position. Freddie Deboer might be the closest that I come, and while he's arguably very progressive, he's not typical. Any suggestions?
Edit: For non-media bloggers who touch on social issues, I'd suggest Andrew Gelman and Scott Aaronson as being good progressive voices. For media, I should have added Matt Taibbi, but he may also be in the very liberal but not-exactly-progressive camp.