From: Petter Reinholdtsen
The process of creating new BitCoins is called mining, and it is CPU intensive process that depend on a bit of luck as well (as one is competing against all the other miners currently spending CPU cycles -to see which one get the next lump of cash. The "winner" get 50 +to see which one get the next lump of cash). The "winner" get 50 BitCoin when this happen. Yesterday I came across the obvious way to join forces to increase ones changes of getting at least some coins, by coordinating the work on mining BitCoins across several machines