It's a big day for Seattle-based Evri. The Paul Allen-funded "semantic Web" media company relaunched today with new visual features, and it acquired San Francisco-based Radar Networks.

Evri was especially interested in Radar's Twine.com, another semantic Web company with more social and sharing features that complement Evri, which automatically compiles streams of Web material related to a broad set of topics. Media companies have added Evri's widget to their sites, where it presents links to related information about a story.

Twine's 10 employees will move into Evri's San Francisco offices. Terms of the deal weren't disclosed. A spokesman said Evri, which has about 30 employees, isn't planning to move its headquarters to San Francisco.

Evri Chief Executive Will Hunsinger's comment in the release:

"Evri's and Radar Network's combined talent and complementary technologies bring the industry closer to delivering on the promise of a truly intelligent, timely and intuitive way of finding the news and content that matters most to people. With this acquisition, Evri takes a significant leap forward toward delivering on the consumer promise of semantic search technologies - more meaningful, relevant results filtered from the ever-growing and increasingly cluttered fire hose of content on the web."

Radar Chief Executive Nova Spivack will remain with the company in an advisory role.