Quote Originally Posted by mustang
Focalex offers an affiliate program that will pay your site to help generate these opt-in mailing lists for them. By adding a pop-up sign-up form or a standard link to your site, you are able to earn a generous $0.40 for each new, unique subscriber you refer to their service.
http://www.focalex.com/
hey pop ups can casue problems too. They may irritate the visitors who are coming to the sites and may reduce the traffic later.