Switchboard, which has established itself as one of the leaders in online white pages, will feature expanded business listings, with new ad content that corresponds with search results. It plans to announce some key partners along with its revenue model.
Businesses can now be searched within 2,200 categories, and some display ads similar to traditional yellow pages.
Switchboard joins an increasingly crowded market with several companies competing for the promise of dollars from online advertising. In August, Pacific Bell launched At Hand, a yellow pages directory promising to compete with established player BigBook with its online content.
Several other companies, such as Yahoo, provide detailed maps and business listings with their city sites.
Switchboard went live in February with its current directory, and according to the company provides 106 million residential listings and 11 million business listings.