Link to all types of logic puzzles including matrix puzzles http://www.puzzlersparadise.com
Browse FAQ and answers from Dr. Math http://forum.swarthmore.edu/library/drmath/drmath.middle.html
Honors Pre-Algebra textbook web page http://www.phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=adk&wcsuffix=0099
7th Math textbook web page http://my.hrw.com
Math Games- Good Review http://www.sheppardsoftware.com/math.htm