ValueClick on Friday said it agreed to buy privately held Commission Junction for about $58 million in cash, another sign of consolidation in the online marketing business. Westlake Village, ...

Web publishers have traditionally rejected pay for performance deals because they were unsure how much they would be paid. There was no data to determine an advertiser's commission rate and how it ...

Marketers, long frustrated by not knowing which half of their ad spend is wasted, have found a new ally in pay-per-click advertising models. Search and contextual marketing are good examples of this, ...