Make a Puzzle Sites:
CROSSWORDS: Makes a crossword puzzle that can be easily printed http://edhelper.com/crossword.htm
WORDFIND: Here's a simple word find generator with a key http://ylatis.com/cgi-bin/wordfind.cgi
MATH WORKSHEETS: Really easy to make free math worksheets for all grade levels http://themathworksheetsite.com/
COLORING: Lots of free coloring worksheets in all kinds of categories http://www.coloring.ws/coloring.html
Puzzle Yourself Sites:
CROSSWORD PUZZLES: If you'd like to just do a crossword puzzle yourself try this site http://www.crosswordpuzzlegames.com/
LOGIC PUZZLES: This site is full of online logic challenges http://www.mazeworks.com/home.htm
SUDOKU: Do you like doing sudoku puzzles? http://www.websudoku.com/
JIGSAW PUZZLES: Turn any picture into a jigsaw puzzle http://www.jigsawplanet.com/