In a large-scale media blitz for the digital age, Marchex has launched more than 100,000 local and vertical websites, publishing more than 1 billion pages of content.

The newly launched sites now feature more than 15 million business listings across all major Yellow Pages categories, a deep refinement system, user-generated reviews and ratings, and third-party expert reviews aggregated by Marchex's Open List local content publishing engine.

Verticals include Cuisine.com and Delis.com, while local offerings include SeattleInsurance.com and BostonMortgage.com.

"With today's launch of more than 100,000 locally focused, content-rich websites, Marchex has taken a meaningful step forward in executing on our vision of owning and operating one of the internet's largest and most robust local networks," said Russell C. Horowitz, Marchex chairman and CEO. "In addition, this launch significantly expands Marchex's ability to offer unique and compelling targeted local inventory to our tens of thousands of advertisers. We believe that as we continue to extend Open List's content and functionality across our websites, they will increasingly become rich sources of useful, local content, benefiting consumers and, over time, will drive an increased amount of traffic for our network."