A large number of AGT researchers work in just three large companies: Google, Microsoft, and Yahoo, mostly working on ad auctions. From two or three data points, it seems that Facebook is now attempting to hire such researchers too (although maybe not in “research” roles). Looking in Facebook’s “careers” page, they are indeed looking for an “advertising auction expert” whose requirements include “Expert knowledge of algorithmic game theory, auction theory, mechanism design and their applications to online advertising” as well as a Ph.D. in CS or OR.
I can well see the potential for Algorithmic Mechanism Design research in Facebook. Facebook’s information about its users is enormous, detailed, and lives within the context of their complex social network. Making good use of this complex information seems to require another level of sophistication relative to today’s ad auctions. Privacy issues are always there, and while Facebook has already had problems in that department, it seems that its users do not consider their “identity” to be too private. I wonder if within a year or two we’ll start seeing research papers coming from Facebook too.