Black Holes and Beyond
http://archive.ncsa.illinois.edu/Cyberia/NumRel/BlackHoles.htmlPart of the "Spacetime Wrinkles" exhibit published by the National Center for Supercomputing Applications: descriptions of what black holes are, how they might be detected, and what kinds of gravitational waves they should produce. Aimed at a general audience.
Submitted in section: Physics: Relativity: Black Holes: Black Holes and Beyond