Using the Internet to Spice Up Your Math Class - Mind Map with lotsa cool links!!
Teaching College Math Blog - by the author of the above mind map.
Some of the sites listed on her mindmap that I think might be helpful to you...
purplemath.com - Algebra Tutorials
West Texas A&M Virtual Math Lab - College Algebra Tutorials
Oswego City Schools: Regents Exam Prep Center - Interactive Lessons and Games
S.O.S. Mathematics - Over 2,500 pages which cover a wide range of mathematical concepts.
Paul's Online Math Notes - Collection of tutorials and notes from a professor at Lamar University.
Wisc-Online - A variety of learning objects (Free account signup)