In Dave Wilton's site, he has a list of word sites well worth browsi;ng:
http://www.wolinskyweb.net/word.htm

Sorry, Dr. Bill, I meant to do this the other day. Yes, this is a fantastic list. Casey's Snow Day (odd name, that) is the only on-line reverse dictionary I know. I'd had this site bookmarked, but yours shows updates, so I've overridden the old with the new--thank you!

I spent the whole of my night off, last night, going through nearly each of the sites listed on Dave Wilton's site! Thanks for the link, wwh!

Wilton also sponsors a forum for word and language discussion:

http://pub122.ezboard.com/fwordoriginsorgfrm1