I have two of them actually - both date from the time of the netbook craze about 4 years ago. Both are underpowered and memory challenged but they were designed to run Linux so they both still work quite well. The first one - Acer Aspire One has only 512 MB of RAM but has very Linux friendly graphics and wifi.That was my original netbook and went on lots of holidays with me.
The second one I'm posting from right now. It's a Dell Mini 12 and has a nicer screen and keyboard. My daughter owned it until she got a real notebook and later an iPad. It also ran Linux out of the box but Dell chose some very Linux unfriendly wifi and graphics and had to kludge their version of Linux to get it to run properly.
I've replaced the original operating systems in both machines. The Acer will run just about any light distribution but right now it's got Bodhi Linux (based on Ubuntu.) The original Dell distro was Ubuntu 8.04 but Dell's unupgradable kludged version. I looked long and hard for something better that would work with its ugly GMA500 graphics and Linux unfriendly wifi and finally found Mandriva 2010 version 2. It worked perfectly after its installation and that's what I have now.
I'm just getting the Mini 12 updated and ready to go on holidays in a month or so.