Supermassive Black Holes in the Yahoo! Directory

Constellation-X
An X-ray observatory that will study supermassive black holes and the life cycles of matter throughout the Universe.
constellation.gsfc.nasa.gov
Supermassive Black Holes
Contains photographs, links, diagrams, and tables.
csep10.phys.utk.edu/astr162/lect/active/smblack.html
Massive Black Holes Dwell In Most Galaxies
Contains press text release, photos, and links.
oposite.stsci.edu/pubinfo/PR/97/01.html
Search for Supermassive Black Holes in Galaxy Nuclei
Includes diagrams, tables, and links.
chandra.as.utexas.edu/~kormendy/bhsearch.html
Missing Link New Research Fills Gap in Back Hole Knowledge
SPACE.com article examining black hole evolution.
www.space.com/scienceastronomy/astronomy/blackholes_midsize_020221.html
BBC Online Horizon: Supermassive Black Holes
Article accompanying TV show.
www.bbc.co.uk/science/horizon/2000/massivebholes.shtml