I love when I see stuff on the web that does just what I want it to do. Fav4.org does.

Choose the four websites you want it to display (from a list of 20 or so), set it as your internet homepage, and you have a super-simple place to start your web browsing.

Beautiful!

UPDATE: This has changed its address to http://myfav.es and added TONS of great features! Check it out!