Inspired by Cynn's post, here's the list (pretty long) of big bad horrible fails I've found. Those that don't have links aren't safe for kiddies (nothing's stopping from googling them, though.)
1- GreyArchive - A site with the worst of the worst as far as fanfiction goes.
2- Gunbound -
http://gunbound.softnyx.net/ - Worst excuse for ripping money off dumb gamers.
3- Tibia -
www.tibia.com/ - And this one comes second in that list.รง
4- Sexy Beach and anything done by the same company that did it - I'm cool with hentai games, as long as they've got a plot and challenge. This one has neither.
5- 4Kids - Do I really need to say more?
6- Fallout Boy's 'cover' of "Beat it." - Yes, Fall Out Boys, beat it. Now. Before I go Chuck Norris on your sorry asses.
7- World of Warcraft - They're still charging for an outdated game, when there's way better game engines out there that can be played for free.
8- Any and all Reality TV shows made and to be made.
9- Amy
Whinybitch Winehouse
10- The Spanish dub of Powerpuff Girls Z. I'll keep on watching fansubs, kthxbai.
11- U.S. attempts to make anime movies/series spin-offs. Speed Racer and the upcoming Dragon Ball Z are the only two examples I can remember so far (but I'm sure there's more... I just avoid them like the plague they are.)
12- Gainax. Specially for their spin-off manga of Evangelion. WTF Beverly Hills 90210 Evangelion? ******** off.
List to be updated when I remember more of'em.