WPP is to acquire 3.2% of the issued share capital of Spot Runner, the first internet-based advertising agency.
WPP added that the investment continues WPP’s strategy of developing its networks in fast growing markets and sectors and strengthening its capabilities in digital media.
It follows investments by WPP, announced earlier this year, in Visible Technologies (which helps brands manage their internet reputations), Wild Tangent (see WPP Moves Into In-Game Advertising) and LiveWorld (provider of online community and social networking services).