Favourite flash games?

http://www.fastgames.com/equanimity.html

Here's my latest favourite. A balancing game with a touch of tetris/Columns. W00t

Multitask

I like games that let me think I am able to defy negative gender stereotypes.

I have wasted more time on Boomshine than I like to think about.

Oh, and Dice Wars is pretty addictive. The enemy AI is actually smart enough to team up if one player becomes too strong - it means you actually have to think a little bit in order to win.