Invention City
Invention help with invention patents, prototypes, licensing and sales. Submit inventions. Sell new invention ideas and patents. License invention.
http://www.inventioncity.com

Inventor Services
Consumer product invention evaluation provider.
http://www.inventorservices.com

Canadian Innovation Centre
Services includes invention evaluation, technology due diligence, market research, and education programs.
http://www.innovationcentre.ca/

The Great Idea Finder
This is the place to explore the exciting world of innovation. Whether you're a student, teacher, writer, inventor, history buff, or just looking for innovative consumer products, you'll find things you can use here. Celebrating the spirit of innovation.
http://www.ideafinder.com/

Mahi Consultant - The Art of Invention
PrefaceConfronted with the daily realities of our society, have you discovered original solutions to either a technical...
http://www.mahiconsultant.com/invention/pointers.htm

DeGEval - Gesellschaft für Evaluation e.V.
Die DeGEval - Gesellschaft für Evaluation e.V. trägt als gemeinnütziger Zusammenschluss von Institutionen und Personen zur Professionalisierung und zum Informationsaustausch rund um Evaluation in Deutschland und Österreich bei.
http://www.degeval.de/

Invention & Technology magazine
Quarterly publication focused on the history of American invention and technology. Includes abstracts from archived issues.
http://www.inventionandtechnology.com

Lambert & Lambert
Licensing agents offering invention marketing help to inventors with new invention ideas, products, or patents. Only paid when successful.
http://www.lambertinvent.com

Invention Marketing Video
New Invention Help. Learn how to get new your invention from the idea stage... Turn your new invention into a hot selling gadget.
http://wgsc.com/inventions/

The Sewing Machine: Its Invention and Development
Smithsonian Institution's web publication of a 1976 book on the invention, development and introduction of the sewing machine, by Grace Rogers Cooper.
http://www.sil.si.edu/digitalcollections/hst/cooper/