Andrew Tomkins is an engineering director at Google working on web analysis, search, and personalization. His research has focused on measurement, modeling, and analysis of content, communities, and users on the World Wide Web. Prior to joining Google, he spent four years at Yahoo!, leading search research and serving as chief scientist of the search organization. He also spent eight years at IBM's Almaden Research Center, where he co-founded the WebFountain project and served as its chief scientist. He has published over 100 technical papers and submitted over sixty patents. Andrew received Bachelors degrees in Mathematics and Computer Science from MIT, and a PhD in Computer Science from Carnegie Mellon University. He recently co-chaired the program of WWW2008 and KDD2010, and serves on the editorial board of ACM Transactions on the Web.