I think I've done this before... but whatever. Here are collection of sites dedicated to poking fun at badfic... and hopefully will give some fodder for possible sporkings. (Seriously, the stuff sporked here is just... BAD).

Topless Robot's Fan Fiction Fridays http://www.toplessrobot.com/search.php?tag=Fan%20Fiction&blogid=132
Fandoms: Many

Cardcaptor Science Theater <a href="http://cardcaptorschlueter.tripod.com/">http://cardcaptor_schlueter.tripod.com/
Fandoms: Mostly various animes
Note: Sadly hasn't been updated in ages.

Elmer Studios http://www.heavens-feel.com/elmer/
Fandoms: Many anime, with a lot of Neon Genesis Evangelion Badfic
Notes: The site is a mirror, since Geocities is no longer working.

MPT3K http://www.ttrarchive.com/msts.html
Fandoms: Doctor Who

A MSTing for All Seasons http://www.nabiki.com/mst/
Fandom: Many
Note: Hasn't been updated for a long time, as far as I can tell.

Masterpiece Fanfic Theater http://thatguywiththeglasses.com/bt/the-sage/fanfic-theatre
Fandom: Many
Note: From "That Guy With the Glasses.com" one Bennet the Sage reads NSFW badfic while text pops up to make fun of the story.

Project AFTER http://projectafter.com/
Fandom: Many

So What Color is Your Toothbrush http://airey-kun.livejournal.com/
Fandom: Many

So, that's pretty much it, just sit back and enjoy all the snark! (And PLEASE, consider some of these badfics for the chopping block...)