Seti@Home
If you feel like helping out Mulder and Scully bring justice to the whole UFO phenomenon, then maybe you can help track them down using Seti@Home. For those who are totally unfamiliar, SETI is an acronym for Search for ExtraTerrestrial Intelligence.
The program Seti@Home allows you to join a scientific experiment that uses computers that are interconnected to help track down extraterrestrial signals. The free program will help you download and analyze radio telescope data straight into your home computer. The program is essentially an interesting screensaver and science experiment rolled into one.