http://www.netins.net/showcase/creative/lincoln/speeches/autobiog.htm
(Featuring three short autobiographical descriptions written
by Lincoln.) 
http://www.fgi.net/LincolnLegalPapers/  
(A brief history of Lincoln's career as a prairie lawyer.)
http://www.mrlincolnswhitehouse.org/  (For
a picture of the domestic life of the President at 1600 Pennsylvania
Avenue.)
http://www.historyplace.com/lincoln/index.htm
 (An excellent resource on the life and presidency of Lincoln.)
Donald, David Herbert.  Lincoln. 
New York: Touchstone Books, 1996.   (One of the best and
most recent scholarly works about Lincoln.)
Freedman, Russell.  Lincoln: A Photobiography. 
New York: Clarion Books,  1987.   (This Newberry Award winner
is written for a younger audience, but remains an  excellent  distillation
of Lincoln's life.  Cool pictures, too!)
Herndon, William H. and Jesse W. Weik. The
History and Personal Recollections  of Abraham Lincoln. 
Edited by Paul M. Angle.  New York: Fawcett  Publications, 1965.
  (The controversial biography by Lincoln's law partner
and longtime friend.)
Shaw, Archer H. The Lincoln Encyclopedia. 
New York: The Macmillan  Company, 1950.  (Lincoln's thoughts
on everything from abolition to z).
Thomas, Benjamin P.  Abraham Lincoln. 
New York: Alfred A. Knopf, 1952.  (A serviceable biography
from an erstwhile historian.)