[TheBeard]

Originally Posted by markem

http://mathworld.wolfram.com/
http://mathforum.org/library/
http://www.mathreference.com/

are all good sites.

I hadn't heard of mathreference.com before now, but I wouldn't point someone to that site (nor to Wolfram's site) for basic algebra help. The mathforum.org site seems to have links to good basic algebra study guides.