Biography-center is a huge directory of biographies available on the Web... 

http://www.biography-center.com/

The Australian Dictionary of Biography Online (ADB Online) is a biographical dictionary featuring concise, informative and fascinating descriptions of prominent Australian men and women from all walks of life... 

http://adbonline.anu.edu.au/adbonline.htm

The Biographical Dictionary contains information on 33,000 notable people from ancient times to the present day. The Dictionary is searchable by names, keywords, and dates... 

http://s9.com/

Profiles the 100 most influential people of the 20th century (as selected by TIME Magazine) in five fields of endeavor... 

http://www.time.com/time/2006/time100/

Read biographies, play games, watch interviews and video clips at Biography.com. Check out our Born On This Day, Deathiversary, and Black History sections. Visit The Biography Channel for great TV shows like BIOGRAPHY, Notorious, I Survived..., and more... 

http://www.biography.com/