Internet companies are all getting on Facebook application bandwagon. Chitika have produced an application called ibought. Affiliates earn $1 for each person who adds the application to their profile.
I haven’t logged into my Chitika account for a while, but it seems like they have been doing a bit of work with their interface and adding new features. I haven’t had much success with Chitika, but if you have a product site like ipods or mobile phones it should work well.