In exchange for people completing an offer for one of their advertisers , these companies are compensated for sending advertisers new customers(you).
Examples of advertisers' offers include a variety of free trial offers, advertised products for purchase, credit cards, and subscriptions to membership services.
Most of these companies require a credit card in order to complete a offer. These are well know businesses, that have been around for years. So you credit card number is well protected.
Such as:
Blockbuster
Netflix
Stamps.com
Video Professor
AOL
NetZero
People PC
etc...
The costs vary by offer. Some are absolutely free and can be discontinued without any further obligation while others may require a small purchase.
Here is another video from G4tv Screen Saver, they chat with a CEO of a well know Freebie Site.
They talk about, how they are compensated for referring people to their Affiliates/Advertisers.
