eBay is reportedly increasing commissions it pays to affiliates, people who drive bidders and buyers to its site. As of February 1, 2005, eBay will increase the rewards from the previous $12 - $30 range per new user to $20 - $45 for each new user. A new user, or "active registration," is defined as a user who registers with eBay and, within 30 days, places a bid on any item or uses the Buy It Now feature to purchase an item. eBay had last raised affiliate commissions on November 1, 2004.
According to an eBay White Paper on API best practices for affiliates, paid search is one of the most popular business models for eBay affiliates. Paid search refers to pay-per-click programs like Google AdWords and Overture. The paper describes how to use the eBay API to determine which keywords to buy on search engines like Google.
eBay allowed affiliates into its Developer Program in July. The eBay Affiliate Program is administered by Commission Junction.
http://affiliates.ebay.com