PubMatic said today it would extend its ad network optimization technology to include mobile advertising.

The company said it would use its real-time optimization technology to help publishers maximize revenue from their mobile ad inventory. PubMatic’s technology helps online publishers get the most revenue from their advertising space by determining in real-time which ad network or exchange can best monetize each impression.

TVGuide.com has tapped ad firm PubMatic in an effort to boost its advertising revenue.

"PubMatic has significantly decreased the operational burden of managing multiple ad networks and simultaneously helped us eliminate inefficiencies in our remnant advertising pricing," said Ian Wallin, Vice President, Online Ad Sales, TVGuide.com. "We’ve enjoyed working with them."

The economic slowdown in the U.S. is starting to impact the online advertising industry, with overall monetization down 23 percent according to ad optimization company PubMatic’s second monthly Adprice Index.

The index is based on data from more than 3,000 publishers and billions of ad impressions.