The Scholarship Page
This is a site that allows free searching for scholarships. The site began in 1997 as a site for mainly engineering scholarships, but it has expanded since that time.
http://www.scholarship-page.com/

CollegeNet
"The Mach25 database contains over 600,000 awards totaling over $1.6 billion." This is a searchable database that allows you to set the filters.
http://www.collegenet.com/mach25/

Go College
This site has an online scholarship search facility as well as ACT and SAT practice tests.
http://www.gocollege.com/

Association for Women in Science Educational Foundataion
Graduate Fellowship awards The sponsor provides support for female students enrolled in a behavioral, life, physical, or social sceince or engineering program leading to a Ph.D. degree. Five to ten awards are available. Deadline(s): 01/28/2003
http://www.awis.org/resource/scholarships.html