Yahoo! Inc. is rumored to acquire Maven Networks for over $150 million.  Yahoo! was also previously interested in acquiring Metacafe and previously acquired online video editing company, Jumpcut. 

Maven Networks is an Internet TV advertising platform.  Here is a sample of what they do:
http://www.mediamave.com/foodnetwork/

Maven Networks is based in Boston, Mass. Some of Maven’s clients include FOX, Scipps Networks, Sony, TV Guide, Gannett, Univision, USA Today, CBS, IBM, HGTV, Food Network, and CNET. 

Maven previously raised around $30 million in funding from Prism Venture Partners, Accel Partners, and General Catalyst Partners.  Maven Networks has a partnership with Comcast and had a former advisor that is now the CEO of Brightcove.

[Information Source: NewTeeVee and TechCrunch]