Here's a few of the databases that I've finished.

Cancer/Medical - A collection of medical terms dealing with cancer.
view cancer/medical content

HUD/Housing/Lending - From the HUD website, a collection of over 300 housing and lending terms and their meanings.
view lending/housings content

Patents/Trademarks - A Glossary of Trademark/Patent terms used by the patent office view Patent content

Insurance Terms - 128 Definitions of common Insurance Terms. A small archive with big ad revenue potential.
view Insurance content

Dreams - This is created from a manual of dreams and has 2200 pages of symbols and signs that might appear in a dream and what they mean. view dreams content

Crafts - This is a collection of craft ideas that have been gleaned from internet user groups. view crafts content

Fitness - A collection of articles on fitness. view fitness content

Business Letters - A collection of Business Correspondence Templates.
view Business Letters content

Electronics Terms - A collection of definitions of Electronics Terms.
view Electronics Terms content

Medicinal Herbs - A compendium of Medicinal Herbs and their uses.
view Medicinal Herbs content

Pharmaceutical Terms - A glossary of Drug terms.
view Pharmaceutical content

Bread Recipes - 3600 Bread recipes from the internet. Good for adding content to a food or restaurant site.
view Bread Recipes

Cosmetic Surgery Terms - A small starter archive with lots of money making potential. 86 common Cosmetic Surgery Terms.
view Cosmetic Surgery Terms

Dieting Glossary - Definitions of 129 Diet, Obescity, and Weight Loss Terms. Nice small archive.
view Dieting Terms

I have more, I will keep adding as I find time.