Here are a few sites that I visit a lot or just are interesting to me.

Google (of course)
Wisden Cricinfo for cricket news
Wikipedia
Dictionary.com
Mathworld
Guide-to-squash has lots of videos of squash tournament games
BBC News
The New York Times
Rotten Tomates - for movie reviews and info

Some more links:

Music

Science and Math

Indology and Sanskrit

Philosophical links