Like Paul said, the software that comes bundled with it means you can take pictures. I have a creative Webcam Plus Go, it was innovate it as it was the first webcam that doubled as a true digital camera. Its very dated now though.
If you want a webcam, you HAVE to get this:
http://www.logitech.com/index.cfm/pr...CONTENTID=7172
Its so cool. It follows you around the room, and has a red light on it. Makes you think you have HAL9000 for a PC

Bit creepy though too.