Stefan Weitz is a Senior Director of Search at Microsoft and charged with working with people and organizations across the industry to promote and improve Search technologies. While focused on Microsoft's product line, he works across the industry to understand searcher behavior, academic developments, and innovations from all over and, in his role as an evangelist for Search, gathers and distills feedback to drive product improvements.

Weitz is author of the book Search: How the Data Explosion Makes Us Smarter.