Abstract: A system for evoking positive customer reactions to a promotional activity for advertising entities on demand. The system comprises an input unit for receiving a bid for a positive reaction to a promotional activity from an advertising entity, a customer-targeting unit for generating a promotion list that specifies potential customers based on the bid, and an output unit configured for outputting said promotion list. The generated promotion list is calculated to evoke a sufficient amount of positive customer reactions to the promotional activity from the plurality of potential customers to meet said bid.

Abstract: A customer targeting tool for identifying and targeting potential customers on a network. The customer targeting tool comprises an discovery unit for analyzing customer data regarding customer reaction to previous promotion activity. The reactions being positive or negative and the analysis identify groupings from customers differentiated by the reactions. The customer targeting tool further comprises a targeting unit, associated with the discovery unit, and configured to target customers belonging to groups discovered from customers showing positive reactions.