Do you sell products or services online? Lauch an affiliate program for publishers where they will refer you in return for a sales commission or a share delivery fee. Cost Per Sale - commission on sales Advertiser sets the commission for publishers themselves. Pays commission only on completed transactions. Does not incur costs when there are no sales. Cost Per Lead - fixed rate per action Advertiser determines action type and rate. Pays only for actions correctly completed. Does not incur any costs when there are no actions.