Links
You can participate: SETI @ Home
http://www.hawking.org.uk/ – Hawking, Stephen. “Life in the Universe”. Public Lectures. University of Cambridge.
In A Nuclear Era, Are We The Exception Or Rule?
Articles/Books
“If the Universe Is Teeming With Aliens…Where Is Everybody?, “Webb, Stephen. Springer, 2002, pp. 62-71
“The Millennial Project: Colonizing the Galaxy in 8 Easy Steps.”, Savage, Marshall T. (1992).
“Is Anyone Out There? The Scientific Search for Extraterrestrial Intelligence.”, Drake, Frank; Dava Sobel (1992).
Sagan, Carl. Cosmos, Ballantine Books 1985
“The Most Advanced Civilization in the Galaxy is Ours”, Tipler, Frank. Mercury, vol. 5, pg. 5, 1982.