Here you will find several interesting chess sites with which to play, practice, learn or just enjoy.

Play against the computer online
http://chess.math.com/

Play against this computer
http://www.chessgamesite.com/

Chess Stamps in History
http://www.queensac.com/chessstampintro.html

Internet Chess Club (ICC) - Games and News
http://www.chessclub.com/

Chess Kids Academy - Learn to play
http://www.chesskids.com/

5334 Problems, Combinations and Games - (Book) by Lazlo Polgar and Bruce Pandolfini
http://books.google.com/books?id=ceR_1Jafb2oC&printsec=frontcover&dq=chess&source=bl&ots=fuQ_8jBhjU&sig=n5HHriQaWs1XVPHJdDTXj9nnjuQ&hl=en&ei=ooLQS8T6C4Lq9QTuwsw-&sa=X&oi=book_result&ct=result&resnum=45&ved=0CKsBEOgBMCw#v=onepage&q&f=false