Best small Linux desktops

We have selected 6 of the best desktop environments that are good candidates for older hardware. These typically run well on a machine with a Pentium II 266MHz CPU and 128MB of RAM. All of the desktops are released under freely distributable licenses. If your Linux box is constantly swapping or feels sluggish in general use, try out one of the desktops featured below. It may just save you from discarding a perfectly good machine.