This document summarizes a presentation on how social gaming companies have had to adapt to policy changes on Facebook that limited viral distribution. It discusses how three popular games (Farmville, Social City, and Millionaire City) saw declining user growth after Facebook's policy changes in 2009 and 2010. The presentation recommends strategies for social games going forward, including using discovery stories, advertising, invites/gifting, cross-promotion, and focusing on daily active users and retention rather than growth alone.