So far this has been the best webcam I've ever used. It's an HD webcam, 720p HD widescreen, even works on ubuntu (lucid) linux right away under uvcvideo. It also has a microphone, and the audio quality is very clear.
[ 26.861845] uvcvideo: Found UVC 1.00 device Microsoft® LifeCam Cinema(TM) (045e:075d)
[ 26.911241] input: Microsoft® LifeCam Cinema(TM) as /devices/pci0000:00/0000:00:0b.1/usb1/1-3/1-3:1.0/input/input6
$ lsusb |grep -i microsoft
Bus 001 Device 003: ID 045e:075d Microsoft Corp.
Above all, it is priced reasonably.
- 720p HD Widescreen Video
- Auto Focus
- High-precision glass element lens
- ClearFrame Technology for smooth, detailed video
- Digital, noise-canceling microphone
tl;dr: here's a good HD webcam for almost all operating systems. works with skype and other IMs.