MyReferer - Affiliate software reviews.

AffiliateMatch.com - Affiliate programs directory with searchable, categorized listings.

AssociatePrograms.com - A searchable directory of rated affiliate programs.

Refer-It.com - hA comprehensive guide to affiliate, associate and referral programs.

AffiliateTip.com - Affiliate program directory, newsletter, tips, and resources.

Performics - Full-service online marketing company specializing in pay-for-performance media.

Commission Junction - An online advertising and internet marketing company that specializes in performance-based affiliate programs and search marketing solutions.

TradeDoubler - European network providing services for merchants to promote their products and services.

Shareasale.com - Affiliate network providing pay-per-sale, pay-per-lead, and pay-per-click programs for webmasters.

LinkShare - Affiliate program network.

ClickXchange.com - Offers CPC, CPA and e-mail based affiliate programs for advertisers and publishers.

clixGalore - UK based pay for performance opportunities. Many pay based on US dollars.

Opt-Media.com - Optimize Your Revenue -Webmasters can earn revenue through viral marketing. 80% payouts, real-time stats, customizable Tell A Friend forms.

UKAffiliates - UK performance based network.

Websponsors - This network is only open to sitese getting 100 hits or more daily.