New York - WPP has filed a $13 million lawsuit against Spot Runner, the Los Angeles self-service ad creator in which it has a stake, as well as the agency's chairman-CEO, Nick Grouf, and its board for securities fraud and breach of contract, reports Ad Age.

New York - The Nielsen Company and advertising giant WPP announced that they have agreed to swap certain assets, in a deal that will among other things give Nielsen full ownership of AGBNielsen Media Research, the television audience measurement business.

San Mateo, Calif. - Yield Software, a provider of Internet marketing software, announced on Wednesday that it has raised $6 million in its second round of venture capital financing, led by Draper Fisher Jurvetson with participation from ad giant WPP (NASD: WPPGY) and seed investor WashingtonVC.

Sunnyvale, Calif. - Yahoo (NASD: YHOO) on Friday announced a multi-year strategic partnership with several units of advertising giant WPP (NASD: WPPGY), which the company said will allow the companies to buy digital display advertising across the Internet more efficiently.

Dundee, Scotland - Independent video game developer Realtime Worlds announced on Monday that it has raised $50 million in its second round of funding, led by Maverick Capital.

San Mateo, Calif. - Integrated Media Measurement Inc. (IMMI), the provider of an ad and media monitoring service that tracks impressions on consumers' cell phones, has raised $25 million in its third round of venture capital financing, led by advertising giant WPP's Kantar Media Research division.

Singapore - Advertising giant WPP's (NASD: WPPGY) Wunderman marketing services network announced on Tuesday that it has acquired Asian interactive marketing firm Agenda.

Princeton, N.J. - Invidi Technologies, a provider of targeted advertising for broadband TV services, announced on Thursday that it has raised $25 million in its third round of venture capital financing, led by WPP's (NASD: WPPGY) GroupM.

New York - Advertising giant WPP Group announced that it has acquired Blast Radius, a digital ad agency based in Vancouver, B.C.

San Francisco - VideoEgg, a video advertising network for social networks and other online communities, announced on Wednesday that it has raised $15 million in a new round of financing, led by Focus Ventures.

London - Global advertising firm WPP announced on Thursday that it will acquire search engine marketing provider 24/7 Real Media for $649 million.

San Francisco - VideoEgg, the provider of a video advertising network, announced on Monday that it has received a strategic investment from communications services group WPP.