Other useful references...
HTML For the World Wide Web
This book is set up so that it is easy to look up what you want to do. (by Elizabeth Castro, Peach Pit Press, 1998)
HTML 4 for Dummies
This book covers all the same areas as the main text. Sometimes it's nice to have another description of how to do something. Overall, I didn't use it very much. The other book is better. If you like the "dummy book" style of explaining things, this book can be handy. (by Natanya Pitts and Ed Tittel, IDG Books Worldwide)
My husband
Who finally convinced me to drop the frames format and use Front Page. I think it really improved this site.