Could anyone point me to some sites where I can find some math e-books?
Mathematics Encyclopedias :
PlanetMath also contains a listing of eBooks. Google has a directory of online mathematics texts lists at http://directory.google.com/Top/Science/Math/Publications/Online_Texts/Collections/ .
E-Books is our specialty:
Keep checking, because I've got a lot more that aren't on there yet.
How's this one? Credible?
Separate names with a comma.