Tom Shields is SVP, Publisher Strategy, AppNexus & Co-founder, Yieldex. He is well recognized as an online advertising pioneer for his role in launching the world’s first ad servers. As a Co-founder and Chief Technology Officer of NetGravity, Tom developed mission-critical real-time ad server software that was deployed at over 300 customer network operations centers, leading to a successful IPO in 1998. Tom was also Co-founder and first CEO of Yieldex, pioneering advanced forecasting and analytics for top publishers like Comcast, Viacom, ESPN, and Pandora. Tom received a Service Award from the Internet Advertising Bureau for leading the group that created the first ad impression counting standards, and currently serves on the IAB Tech Lab Executive Committee. Before starting Yieldex, Tom was Managing Director at Woodside Fund. He also worked at Oracle and at technology startups in AI and finance. Tom graduated with honors with a BA in Computer Science from Harvard College.