Netbooks are pretty convenient products: light, portable, and powerful. If you're one of those people who swear by netbooks but wish you could get some extra amount of screen space then the latest DoubleSight usb monitors are just for you. Powered by USB, the 7" and 9" displays use a single USB connector for both power and video, letting you use other usb ports for some other purposes. Another interesting feature of these displays is their integrated webcam (optional).

The monitors support landscape as well as portrait viewing and are compatible with Windows and Mac based PCs.

The 7" usb monitor provides 30ms response time, 375cd/m2 brightness, 800x600 resolution, and 350:1 contrast ratio.

On the other hand the 9incher provides 1024x600 resolution, 200cd/m2 brightness, 300:1 contrast ratio, and 30ms response time.

The 7" version costs $119, while the 9" model will set you for $159.