shareasale

A large network offering hundreds of programs – pay-per-sale, pay-per-lead, and pay-per-click programs. More than 700 merchants. It has a strong pro-affiliate attitude and despises parasites. Has lots of datafeeds

cj

Probably the most popular affiliate network, Commission Junction also has its share of critics. Finding and joining an appropriate affiliate program is easy. CJ also makes things easy for affiliates by consolidating all payouts into one check. It displays EPC (which to CJ rather oddly means “earnings per 100 clicks”, not earnings per click). CJ is owned by ValueClick, which merged with Be Free.

linkshare

LinkShare has more than 600 merchants in its affiliate network. Choose from categories such as books, music, flowers, fashion, computers, etc. You’ll find some big name companies here, including Dell, Nordstrom, Target, Disney and American Express.

clickbank

Offers a huge array of downloadable products, mainly ebooks. Because it is cheap and easy for merchants to join, the quality of the products provided varies enormously, from very good to downright awful. It’s a popular place to search for overlooked niches

performics

Highly professional site with some well known brands. Performics’ clients include: America Online, Blair Corp., Bose, CompUSA, Eddie Bauer, HP Shopping, Kohl’s, L.L.Bean, PC Connection, RedEnvelope, Verizon Wireless, and more than 200 others. Performics is owned by DoubleClick