With its recent investment and technology exchange with AppNexus, WPP will  have the technology platform to compete against companies like Google’s DoubleClick and Facebook’s Atlas, says Sir Martin Sorrell, WPP chief executive, in this interview with Beet.TV  He says that Google and Facebook are “media owners” much as Disney or Viacom, and as such should not be in a position to do media planning.

He also speaks about WPP’s commitment to programmatic private versus open exchanges.

We spoke with him this morning on the first day of Advertising Week.