Alphabetical Puzzlers
Can you find the rules?

Enigma Device
Two new word puzzles every day - they have letter substitutions, scrambles, and more.

Fish Soup
Take turns playing with a friend to choose words that have common letters.

Funster
Pick a login and password, then play What's-in-a-Name and Know-it-All.

Interactive Sentence Builder
Great for young kids learning to compose sentences.

Search the Word
Biblical word search puzzle in Java, with sound effects and a time limit.

Tremingo
Form words across the playing field. I'd suggest looking at the tutorial first.

Word Detective
Awesome site where you make your own word search puzzles.

Word Zap
An action-oriented word game you can play over the Net or just on your own computer. Also lets you connect to players over ICQ.

WordMeister
Hangman-style word game.