Books

Black Holes & Time Warps: Einstein's Outrageous Legacy, by Kip S. Thorne, W. W. Norton & Company, 1994.

Gravity's Fatal Attraction: Black Holes in the Universe, by Mitchell Begelman and Martin Rees, Scientific American Library, 1998

Other books with good information on black holes:

The Hundred Greatest Stars, by James B. Kaler, Copernicus Books, 2002

The Physics of Star Trek, by Lawrence M. Krauss, BasicBooks, 1995

Time Travel in Einstein's Universe, by J. Richard Gott, Houghton Mifflin, 2002

Web Sites

Black Holes & Beyond

Cambridge Relativity: Black Holes

Chandra X-Ray Observatory: Black Holes

Imagine the Universe: Active Galaxies and Quasars

Virtual Trips to Black Holes and Neutron Stars

Other websites with good information on black holes:

Encyclopedia of Astronomy and Astrophysics: Institute of Physics Publishing

HubbleSite

Messier Objects: Galaxies

Multiwavelength Astronomy

Stars/Star of the Week

Stephen Hawking's Universe

What Are Astronomers Doing?

Other Articles

Black Holes: Stranger Than Fiction

What is a Black Hole?

Structure of a Black Hole

Birth of Stellar-Mass Black Holes: Gravity's Victory

Seeing the Unseeable

Birth of Supermassive Black Holes: Battle in the Bulge

Fact vs. Fiction

An Apple a Day Keeps the Moon in Orbit

Dark Stars

Reinventing the Dark Star

It's All Relative

Faster than a Speeding Einstein

Making (Stellar) Waves

Squeezing the Life Out of a Star

Down the (Gravitational) Drain

More Than a Star, Less Than a Galaxy

A Black Hole by any Other Name

Piecing Together a Black Hole

Giving Black Holes a Temperature

Which Came First, the Galaxy or the Black Hole?