Paid To Signup

Also known as PTS or Paid offers, these websites pay members to sign up for sponsor offers. These offers usually cost money, and so these programs are not free. The problem with these websites is that there is often an overlap of offers between websites; for example several websites may have the same offer available.

Paid to Promote
These websites pay users to promote a link. They usually pay a small amount for every user who views the page.
Some websites fall in to more than one of these categories.