A common issue with a Netbook is that they do not have a CDROM so that you must load the operating system from a flash drive. UNetbootin, the Universal Netbook Installer does an excellent job at creating an image to put on your flash drive so you can install it on your Netbook.
The first thing to do is to download the .iso image that you want to place on your Netbook. An iso is an image of the distribution that you want to install on the machine. It is important that it is not just copied, it must be installed as an image so that it can boot. Here you can see the image has been selected. Put your flash drive into the machine that will create the image. In this example you can see that /dev/sde1 has been detected.
WARNING:Be very careful not to select the show all drives, as it will show you all of your drives and it is easy to overwrite a drive that is on your computer.
Once this is set up it creates the image, unmount the drive, put it in your Netbook and boot to the USB drive and your new installation will begin.
There is also the option to download and install an image right from the Internet and place it on the USB flash drive. Just select the image you want, and click and it will be completed for you.