I know an online source...

Gardenweb :o)
I don't know if you'll find many sources like this.

*goes back into lurk mode*

I, too have searched for books on terrariums and found nothing! Someday it may motivate me to write one myself, but not while I have small children to keep me busy! =) I did see one book mentioned in a Gardening magazine called 'Tabletop Gardens' or something like that, but it isn't just about terrariums. It also deals with dish gardens and plant groupings, and I don't know if it's any good because I haven't been able to find it or read it. Don't remember who the author is, either. Perhaps a book on botany and Wardian Cases would be of more use?

I totally agree with catalina though, this forum is excellent! =)

Tabletop gardens is a semi-good coffee table book, at most. (My personal opinion, obviously.) You know more than what's in there, substance-wise.

Thank you, all! At least I'm not the only one having trouble finding one!
Catalina: I'll go there and see what's available, thanks!
Ana :)

Hey! Catalina!
I read your reply too fast..... you got me! LOL!!!!!
Ana :)))))

I found some sites online. Google: plant terariums.

The library book that got me going with terrariums and indoor light gardens is: Newts and salamanders : everything about selection, care, nutrition, diseases, breeding, and behavior / Frank Indiviglio. It includes some good information on plants and terrariums.