Check 'em out. Bottle Of Blog has some really funny rants about life and politics. Sadly, No! and World o' Crap bring back nuggets from the wingnutosphere and amusingly dissect them for you, Tbogg has some good snark, and Pharyngula has stuff about science, evolution, and anti-religious fundamentalist stuff.
Anyway, waste some time at work. They are all worth checking out.