Free Online Jigsaw puzzles for kids and family. Great Animals and Nature photos.
Over 2000 puzzles to solve with 24 different cuts. Keeps track of best times/average times. Records page has links to go beat a record. Submit photos for consideration as a puzzle.
http://www.jigkids.com

Puzzles
Puzzle Information Portal - Crossword Puzzle, Jigsaw Puzzle, Create Your Own Puzzle ...all in there. A Really Fantastic Guide!
http://www.dreampuzzle.com

Sodoku
Information about the game of Sodoku with tips from the grandmaster.
http://sudokugrandmaster.com

Zuzzle Puzzles
A large collection of puzzles, riddles, brainteasers, word games etc.
http://www.zuzzle.com/