Besides tomatoes, I use the fermentation method on other wet seeds enclosed in gel sacs... cucumbers, Mexican sour gherkin, West Indian gherkin. Another seed saver I know uses it for kiwano.

There are many seed saving books; most are for vegetables. Probably the best of these is "Seed to Seed" by Suzanne Ashworth. Others are listed in the link below, scroll to nearly the bottom of the page. Lots of other good seed saving info there as well, although some of the links are outdated.

Here is a link that might be useful: Seed saving resources (including books)

Thanks!I will definetely go look at "Seed to Seed" and I am right now looking at the link. Thanks
~mike