SETI@Home: Why let your home computer waste millions of CPU cycles running a screen saver when it could be analyzing SETI data? Computer users from around the world are able to participate in this major scientific experiment.

SERENDIP: The SERENDIP SETI program is a search for radio signals from extraterrestrial civilizations; it is currently conducting a sky survey at the world's largest radio telescope.

Optical SETI: Instead of listening for radio signals, this new project searches for pulses of light from thousands of nearby stars.

CASPER: Center for Signal Processing and Electronics Research