Contests

American Crossword Puzzle Tournament
The nation's oldest and largest crossword competition.
http://www.crosswordtournament.com/

The Contest Center
Eight new puzzle contests monthly. Plus riddles, brainteasers, cryptograms, logic puzzles, crosswords, anagrams, alphametics, sweepstakes, and tongue twisters.
http://www.contestcen.com/

Puzzle Players Weekly
Offers weekly puzzles to mail in for cash prizes. Requires nominal entry fee.
http://www.puzzleplayersweekly.com

Puzzles For Profit
Using assigned letter values, contestants seek the best possible score on a variety of word puzzles. Nominal entry fees; $3,000/month payoffs.
http://www.angelfire.com/biz2/PuzzlesForProfit/index.html