The Interactive Advertising Bureau dubs pay-per-click (PPC) as advertising's fastest-growing segment, writes DM News (via MediaBuyerPlanner). Google, for example, earned revenues exceeding $6 billion from keyword ads, which beat out TV and network chains for ad dollars. PPC advertising could offer a low-cost addition to infomercials as well as another way for advertisers to measure their marketing message's effectiveness, according to Elena Krivoruchko, director of advertiser solutions at Searchfeed.com.

"We help companies create text-based listings using product titles and appropriate sets of keywords," Krivoruchko said. "It's important to incorporate the same marketing message and product titles driven home to the consumer in the infomercial in keyword sets."

"By running a pay-per-click advertising campaign that encompasses branded terms and key marketing phrases used in an infomercial, advertisers can capture that search traffic, measure increases in searches and keyword clicks, and use this information as a way to gauge the infomercial's success," Krivoruchko added.