Yahoo Groups for Inventors

http://finance.groups.yahoo.com/group/theinventorsforum/

from their site:

Description
Welcome amateur and professional inventors!!! This yahoo group was created for all who have the desire and the creativity to invent new ideas and concepts. Welcome scientist, circuit designers and draftsman. Welcome electronic technicians, computer programmers and communications specialist. Welcome engineers, machinist and mechanics. This group was created for people from every walk of life, from various technical and work backgrounds. The common bond that brings us together is inventing! In this group, you will come incontact with people who have diverse technical, business and marketing backgrounds. You will be able to ask questions about a technical problem that may need to be solved, or a marketing problem you may have. It is a think tank, a problem-solving group. You should never give your idea for an invention away to anyone; however; this forum will allow those who are not technically knowledgeable to get some advice from those who are. It is also a place for those of us who are technically knowledgeable, to get some good advice from those inventors who have a good business and marketing background. Presenting your invention to a manufacturer can be a long and hard road. Here in this group, we can discuss ways of how to shorten that road and present your invention to industry in a much shorter and professional manner. So let the creative juices flow!!!