Oneplayer Install the freeware application, then select from a large assortment of downloadable puzzles. http://www.oneplayer.com/

Free Jigsaw Puzzles.com Frame style jigsaw puzzles depicting a wide variety of subjects. Updated weekly. http://freejigsawpuzzles.com/

WaveFormula Downloadable wallpapers which can be played online as 'scrambled tile' jigsaw puzzles. Java required. http://www.waveformula.com/

Fell2Earth.com Hundreds of frame style jigsaws using the icaPuz applet are organized by title. Also 2 daily puzzles using icaPuz and Playtonium engines. http://www.fell2earth.com

Puzzle House Over 100 online jigsaw puzzles, each with three levels of difficulty. Each puzzles is also available for purchase. Requires Shockwave. http://www.puzzlehouse.com/_onlinepuzzles/onlinepuzzlesmain.htm

Article 19 Group, Inc. A Shockwave engine for authoring and distribution of digital jigsaw puzzles, with three sample puzzles. http://www.article19.com/shockwave/jigsaw.htm

La LA Land Frame style jigsaw puzzles with four levels of difficulty, some with sound effects. Requires Java. http://www.mcjeff.com/la/puzzles.html

Anagramania Jigsaw puzzles organized by category and title. Requires Java. http://www.lholmes.fsnet.co.uk/jigsawchoice.htm

PuzzleMak Weekly online frame style jigsaw puzzle. Also offering downloadable shareware for puzzle creation. http://image-ination.com/puzzleaweek/

DLTK's Online Jigsaw Puzzles Online Shockwave and java jigsaws of varying difficulty, with daily and weekly additions. http://www.dltk-kids.com/puzzle.htm

Jiggy the Jigsaw Jigsaw puzzles with animated images. Offers choice of size, speed, and picture. Requires Flash. http://yahome.pp.ru/flash/jiggy.html

Donnalou's Disney Jigsaw Puzzles Puzzles are organized by film name and use the Jigzone applet. http://donnalous_jigsaws.tripod.com/

icaPuz Java jigsaw puzzles to play online, purchase or add to websites. Includes daily puzzles. http://www.ica-d.com/

The Puzzle Society A variety of puzzles and word games for paid members. Requires Shockwave. http://www.upuzzles.com/free/

Puzzlet Factory A gallery of over 2500 jigsaw puzzles, to be played online, downloaded, or hosted on a website. Puzzles have joining, rotation and flipped pieces. Features daily puzzles, e-cards, and a chat room. Requires Flash. http://www.puzzletfactory.com/en/home.php3

Jig Zone Gallery of jigsaw puzzles, with 6-247 pieces and unique piece shapes. Also daily puzzle, e-cards, and an email service for the daily puzzle. http://www.jigzone.com/

Dotty's Virtual Jigsaws Reviews online, freeware and shareware to play or add to a website. Includes a list of daily puzzles and online and downloaded samples. http://www.dottysvirtualjigsaws.com

JigCard Gallery Collection of online jigsaws and electronic greeting cards. Free daily puzzle. Members have extra benefits. http://www.jigcardgallery.com

Cards For Fun Free electronic greeting cards and online jigsaw puzzles. http://www.cardsforfun.com/

CastleMountains Play online jigsaws or send one in an electronic greeting card. Java required. http://www.castlemountains.net/pages/jigsawpuz.shtml