Demand Media Inc., an Internet upstart pumped with $350 million in venture funds, has made its most expensive acquisition to date.

Last week, the Santa Monica company bought Pluck Corp., which has developed social media tools and technologies for more than 200 media Web sites, including, and

The acquisition is valued at between $50 million to $70 million, said Richard Rosenblatt, chief executive of Demand Media and former MySpace chairman.

"It's a watershed moment," Rosenblatt said. "We're taking everything we've built over the past two years and taking it outside our network."

Since Demand Media was launched in 2006, the company has quietly acquired 60 well-traveled enthusiast Web sites and updated them with social networking features and video capabilities. Traffic has swelled on each site, attracting a captive audience with user-generated content advertisers like. Ad revenue is a huge portion of the about $150 million the company generates annually.

This network of Web sites, including and, attracts 64 million monthly unique visitors.

The new acquisition will allow Demand Media to place its content on Pluck's partner media Web sites, which combined reach more than 100 million users a month.

For example, content on AnswerBag, a forum where users ask questions and share answers, can be quickly integrated into the sites as a Q & A; widget, similar to Yahoo Answers.

"We wanted to take our secret sauce off network, beyond sites we own," Rosenblatt said. "You can only grow so much in your own network. The key is to take your assets and scale outside your network."

ExpertVillage alone, for example, gets 600,000 additional views a day through users who arrive via Google's YouTube. Instead of buying a Web site with that much traffic and pouring in resources to build the right content, it makes more economic sense for Demand Media to spread what content it owns across popular portals.

Web Works

Tony Uphoff, former publisher and president of Hollywood Reporter and VNU Entertainment Group, has taken the helm of a leading technology trade publishing operation.

Uphoff, based in Palos Verdes, is the chief executive of TechWeb, a new division of British parent company United Business Media.

TechWeb, which has offices in Irvine and San Francisco, boasts more than 10 million in readership across print and online tech trade content, from Information Week magazine to and, and organizes international conferences such as Interop and Web 2.0.

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