Google Tests New Moneymaker

Google is adding another way of generating revenue -- in the works is a new advertising network that will complement its current fraud-prone AdSense network.

The new cost-per-action, or CPA, network will pay only if net users perform a specific action such as making a purchase or generating a sales lead; in contrast, the AdSense model pays based on the number of clicks an advertisement receives and is particularly susceptible to "click fraud," the act of clicking on an ad multiple times to generate revenue.