APOD Index - Stars: Black Holes - A list of black holes pictures from NASA's "Astronomy Picture of the Day" archive. antwrp.gsfc.nasa.gov/apod/lib/black_holes.html
The Search for Black Holes - A brief overview of black holes, information about the discovery of Cygnus X-1, and a short list of links relating to black holes and astronomy. www.owlnet.rice.edu/~spac250/steve/index.html
