Masses and Orbital Characteristics of Extrasolar Planets Table
This is a listing of all the extrasolar planets discovered as of this date:  03 January 2006  (I believe the table is updated periodically.

The Extrasolar Planets Encyclopedia

Interactive Extra-solar Planets Catalog

Habitable Planets

Habitable planets are defined as having a temperature of about 300K to allow for liquid water.

The Search for Life Outside the Solar System 

WIKIPEDIA -- The Free Encyclopedia

An extrasolar planet, alternatively termed an exoplanet, is a planet which orbits a star other than the Sun, and therefore belongs to a planetary system other than the solar system. As of 2006, over 180 extrasolar planets have been discovered.