Good Chess Puzzle Websites?

[Arglefraster]

I recently introduced my husband to Futility Closet, an interesting little blog. His favorites were the chess puzzles, and he asked me if I knew of any other good websites with puzzles like those. I don't, but I figured some of you folks might.

So anyone here know of any good chess puzzle websites?

[twickster]

The chess players and the puzzle people all hang out in the Game Room, so I'll move this from IMHO thither.

[Malacandra]

chess.com and gameknot both have daily chess puzzles, of varying quality.

[Hoopy Frood]

On a side note, Futility Closet is a great website. I check it every day at work along with Not Always Right.

[borschevsky]

Chess Tactics Server (http://chess.emrald.net/)
ChessGames.com (http://www.chessgames.com) (a puzzle on the front page each day)
Shredder Puzzle of the Day (http://www.shredderchess.com/daily-chess-puzzle.html) (3 puzzles each day)