Marfeel today announced that is now working with AppNexus and Rubicon Project with the server-to-server header bidding. Marfeel is an ad tech platform that helps publishers to optimize and monetize mobile websites. Marfeel is now reaching more than 500 million mobile readers a month. Publishers include Dennis Publishing (US/UK)

Google this week announced that Facebook Audience Network, AppLovin, and Rubicon Project are joining the open bidding beta program, following the first participants: OpenX, Index Exchange, Smaato, Tapjoy, and AdColony. Developers monetizing their apps with AdMob Open Bidding "are already seeing more ad revenue and less latency for their

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