Media Matters has a useful rundown of the spread of the false claim that the Schiavo talking points memo was a Democratic forgery (via Atrios).

Update 4/8: Salon’s Eric Boehlert has more. The key point he makes is that the truly partisan bloggers are generally hacks who are just throwing s— against the wall to see if it sticks. While it works, they blog the media/political scandal de jour to death, making tons of their own errors in the process (ie the Rather memo mess). And when it stops working, they quickly move on to the next “scandal” with nary a word of correction or apology.