This new game launched by dating/social networking site iminlikewithyou is a guaranteed procrastination tool. Blockles is pretty much tetris, except you play against other people and earn "items" which you can use on opponents or yourself (add/subtract lines, clear screen, etc.).

The developers of Blockles recently released a beta game called Dinglepop. It's like Bejeweled but with bubbles and cute sounds.

Go waste time!