After recently tv-links.co.uk was shut down in the UK for linking to pirated TV shows, movies, etc.  a lot of discussion has come up online as to whether or not it would have a successor.  Several good sites have emerged but the site I personally use is called TV Links it offers a wide variety of high quality divx content and is fairly simple to navigate.

Here is some information on the current categories available:

Documentaries

TV Shows

Movies

Cartoons

Music Videos