At Puzzles to Print you will find hundreds of printable puzzles that are absolutely free and ready to print, as well as PDF puzzle books that are easy to purchase and download. Most of the puzzles are intended for classroom as well as home use, so teachers and home schoolers are sure to find what they need.
The Griddle is a puzzle blog updated Wednesdays with a variety of puzzle types. The puzzles are authored by David Millar and can include classic word searches, sudoku variations, Nikoli-style puzzles, and many others. Check out the most recent puzzles or dig through the archives from the links at the bottom of each page.