RMPrepUSB is the application you need if you want to create bootable USB drives. they are useful now that most netbooks doesn't include DVD drives.

The program offers you the possibility to create different bootloaders depending on your needs.

Create partitions, format drives, recover lost files, check reading speed and a large etcetera. Don't worry, there are many how-to's in the official site.

RMPrepUSB is a full-featured application to work with USB drives.