Crossword Puzzle Solver (2) - Enter the number of letters and the letters that you do know and the Crossword Solver returns a list of possible words.
Crossword Puzzle Solver (3) - "The Crossword Solver is designed to help users to find the missing answers to their crossword puzzles. The system can solve single or multiple word clues and can deal with many plurals."
Crossword-Clue.com (4) - "Using our website, you will be able to find all the clues you are missing to finish your crossword quickly and easily!"
Crosswordsite - free family-friendly US and UK crosswords, graded from easy quick puzzles to tough cryptics; printable or online versions available.
Crossword Tracker - "Crossword Tracker solves most popular crossword puzzles every day and maps the relationships, allowing you to improve your puzzle solving skills. You can search for the answer to a clue (using the letters you already know or not) and even see all the other clues we have ever seen that point to the same answer."
Cruciverb - a place for crossword puzzle enthusiasts to hang out.
Free Crossword Puzzles - "No strings attached free online crossword puzzles, check with us daily to find free crossword puzzles like word search puzzles, printable puzzles, of course crossword puzzles and even Christmas puzzles. We are 100% committed to providing you with free daily crossword puzzles from all skill levels so don't forget your dictionary and enjoy!"
Free Daily Printable Crossword Puzzels - "These are our 7 seven printable crossword puzzles for today. Remember, they're updated daily so don't forget to check back regularly! You might want to bookmark this page. New puzzles will be added in a few hours!"