1. Cricinfo.
Still the big daddy with an amazing blend of live scoring, stats, and analysis. However, Page 2 is incredibly unfunny (thanks, ESPN) and it can be a little too India-centric.
2. Nationalfootballpost.com
Recently discovered this. The BEST technical sports website, bar none. Columns breaking down plays, a column by a sports agent talking about the ins and outs of agenting, and columns on scouting. Even if you don't like football, you can appreciate the quality here.
3. ESPN.go.com
Covers an amazing range of sports.
What's interesting is that the rugby websites suck. There is no website where I can search for All Black results 1995-1997 or look at lineups in 1986. There is no analysis, and even the game reports are shallow and crappy.
Add your own and opinions.