Contextual advertising network Chitika has announced that their Premium Ads product has seen 200% growth in 2008. The ads are now being served on the sites of 34,000 publishers.
Chitika says the ads work best on sites that garner traffic from search engines. The ads on the publisher's site target the keywords that the visitor came in on. The ad also offers the ability to search within the ad, never having to leave the page of the site they're currently visiting.
Chitika calls it search-targeted advertising. Because of that, they're comparing the program to search engine ads. And they're saying they've surpassed Ask.com's August 2008's numbers of 364 million searches.