Editor: If you enjoy word games that involve arranging or rearraning letters, then this could be useful. This program searches an English dictionary for words matching any configuration you ask for. You can find all the words containing certain letters, discover whether any words exist that have a J, a K, and a Z (there are five). Or you can get some help making words out of seven random Scrabble tiles (no cheating, now!). Does a Q ever occur next to a W? (It does if QWERTY counts). Are there more words that have at least one E in them than all the words with no Es? (Yes, there are more than twice as many with Es).
If such questions fascinate you, then WordStudy will provide some use and amusement for you. It uses a public domain downloadable Scrabble (tm) type dictionary with more than 173,000 words in it. (No definitions -- just listings). And the words are not limited to eight letters or less. It includes words that wouldn't even fit on a scrabble board.