Have a low-power processor on your netbook? Here's a remedy. Ubuntu Linux's Easy Peasy distribution is designed to make netbooks run more efficiently.
Easy Peasy can be installed onto your netbook via a disc or a USB drive. Both methods have a LiveCD component, which means that you'll be able to test out the software before fully installing it onto your netbook.
By default, Easy Peasy boots into a customized menu (shown below) with large icons and menu items. If you're not into the larger-sized features, you can always revert to a regular GNOME-style desktop. Besides that, there's not much else (if anything) that needs to be done after the initial installation. You'll be able to do what you want – browse the net, watch videos, etc.
Have fun!
Via LifeHacker.