I found this article. I think what they are referring to are those ad-ons you could accidentally click when checking out, that will enroll you in a club sort of thing.

For the past few years, Vistaprint has been a controversial name amongst investors. On one hand you have a printing servicing company that provides printed products to small business at an affordable price. But on the other hand, you have a company with a dirty secret which derives a large portion of its income from ?referral fees? ? from companies that offer web loyalty shopping clubs, or in layman terms, those $14.95 a month charges on your credit card bill that leave you scratching your head.

The word ?referral? sounds innocent enough, but in real terms, as a consumer, when you complete an online purchase, you are shown a button saying something like ?Save $10 on your Next Purchase from this Company?. Beware! If you click, even accidentally, your full contact info, but worse, your credit card information, is sent on without your permission to a 3rd party company you haven?t given your permission to. From that point, the debate rages about how many of these charges represent trickery, and how many more are simply fabricated without the consumer?s consent or knowledge.

http://www.citronresearch.com/index....staprint-vprt/