- JigsawZone: a new puzzle every day.
- JigsawDoku: jigsaw puzzles and sudoku, an irrisistible combination.
- Watercycle Jigsaw Puzzle: a great way to teach kids (or yourself) about the water cycle.
- Rock Hound Jigsaw Puzzle: learn about rock layers with this fun jigsaw.
- Neuroscience for Kids - Jigsaw Puzzles: my favorite is the brain saying "thinking of you."
- National Zoo Jigsaw Puzzles: about twenty different challenging animal jigsaw puzzles here.
- Chandra Jigsaw Puzzles: learn more about astronomy with these fun nebula jigsaw puzzles.
- NOAA Jigsaw Puzzle: from the National Oceanographic Administration; an interesting underwater jigsaw puzzle.
- Solar System Jigsaw: from the BBC; a really fun way to learn about the solar system.
- Chemical jigsaw : curious about chemistry reactions? Here's your chance to figure it out.
- United States Map Jigsaw Puzzle: drag and drop the states to their proper location.
- JigsawLand: choose from three different jigsaw puzzle levels.
- FlashPuzzleZone: Tons of really interesting jigsaw puzzles here, from animals to celebrities.
- Free Jigsaw Puzzles: Lots of free,downloadable jigsaw puzzles that even come in different formats and sizes. An excellent resource.
If you're a fan of jigsaw puzzles, then you'll love my list of free online jigsaw puzzles. All the fun without the lost pieces.
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