From the website:

Peanut Labs is a rapidly growing online market research network backed by the investors of Skype, Yahoo eGroups and Delicious. We have created a premium online network for market research by aggregating, integrating and profiling millions of members across more than 60 different sites. Our network is able to reach more than 10 million users.

Our platform enables publishers to better monetize their communities by allowing their users to participate in market research studies. Our platform enables market researchers to gather high-quality data from Gen Y users by reaching them where they spend most of their time - on the Net. Because of our recruiting methods, our panel is free of professional survey takers. We enable access to hard-to-reach groups for the market research community.