How many types are in affiliate marketing?

Different advertisers offer different types of affiliate programs. If you join a search engine affiliate program you most likely will be placing text links or banners to their advertisers and you'll work on a pay-per-click fee. E-mail list affiliates promote e-mail newsletters and are usually paid when a person joins the advertised opt-in e-mail list. Being an affiliate of any merchant usually means you are paid a commission per sale on the advertiser's Web site. Generally speaking,  pay-per-click affiliate programs pay the least amount, as affiliates are often paid per thousand clicks (CPC).

•                Pay-per-lead programs are when you provide the links to downloads, trial offers, and e-mail opt-in lists and so on. Depending on the advertiser, you may be paid per lead generation or you may not be paid unless the user subscribes and pays for a full service from the advertiser. Again, you may also receive fees for both instances.
•                      Pay-per-sale affiliate programs (also called revenue sharing) usually offer the highest commissions, and you'll typically receive a set dollar amount per sale or a straight percentage of the total sale. Because a user has to purchase something, you may find this program best-suited to high-traffic affiliate sites.