MOST useful BLOG EVAR

The chess links i use most with a description of each one...

Chess.com --Chess.com (free & premium)

chessmagnetschool.com --tactics trainer (premium only)

chesstempo.com --tactics trainer (free & premium)

chessgames.com -- Master Chess Database 500,000 games (free & premium)

365chess.com -- user-generated+Master chess database 3mil games (free and premium) also an opening explorer

uschess.org -- USCF

YahooChess