Some of the political weblogs I read:

Liberal Democrat Watch: In politics, being ridiculous is more damaging than being extreme.
Tory Trouble: Plumbing the depths of the Conservative Party.
Boris Watch: Keeping an eye on Boris Johnson, the shadow minister for the arts.
Tom Watson MP: Labour MP for West Bromwich East. I entered his “flag for the Liberal Democrats” competition: see my entry here.

I’ll add some more of my favourites shortly.
DISCLAIMER: I do not endorse the content or opinions of any of these sites. I am of no political persuasion, although during my youth I was a paid-up member of the Liberal Democrats for a year.