SheSpeaks and Vocalpoint
I ran across this section in Trendwatching which mentions two services that I like to use. You might want to try them out. They're informative (and you get to try out free products!).
"Women in the United States can now sign up to test-drive new products in exchange for their honest opinions and reviews at SheSpeaks. Here's how it works: when users sign up, they complete a questionnaire about their interests, hobbies, likes and dislikes. SheSpeaks selects an appropriate product match, which the members receive in two to three weeks. Products are theirs to keep, and to try out in their own homes and as part of their everyday lives. In exchange, members provide their candid feedback online on the SheSpeaks website. Discussion boards allow testers to exchange views and opinions with other women who have tested the same products. After the review process, users can get the scoop on how their reviews may have impacted a product before it goes to market, which creates a nice feedback loop. Over 30,000 women from across the country have already signed up.
Procter & Gamble's Vocalpoint has a similar set up, but obviously focuses on P&G products ("for moms") only. According to BusinessWeek, Vocalpoint had more than 600,000 members in 2006. Time to partner with these folks?"