WildWords - A scrabble style game for windows that can be played over the internet. - http://www.wildwords.us/internet.html
Lexter - Linux console game in which you arrange falling letters to spell words. - http://www.kyne.com.au/~mark/software/lexter.php
Word Finder - Windows program that lets you create and print your own Word Finder puzzles. Add as many words as you like and preview the puzzle before adding the random letters. - http://camtech2000.net/Pages/WordFind.html