Actually, I reckon it's kinda funny in the "Communists for Kerry" case:
http://www.talkingpointsmemo.com/archives/week_2004_09_26.php#003551
http://www.dailyblah.com/
Two things to note before you get your panties in a knot:
(a) I don't believe it is important (Fox News doesn't hide its bias most of the time)
(b) I found this using google after I spotted the retraction on Fox News --> I don't make a habit of reading ANY blogs.