Payvment, the number one Facebook e-commerce platform, announced that the company reached one million monthly active shoppers in December 2011, and saw a 3X year-over-year increase in transactions by its network of over 100,000 sellers during 2011. The company also announced the appointment of Craig Walsey as Vice President of Business Development, and Jennifer Silverstein as Senior Director of Data Insights. Walsey brings over 15 years of experience from the social media, retail, and entertainment industries, recently having held the role as VP with TBG Digital. He will focus on strategic relationships and integrations with the Open Payvment API platform to provide a breadth of social commerce solutions for sellers and extend Payvment’s market reach. Meanwhile, Silverstein joins Payvment from social gaming leader Kabam, where she created and led the Business Intelligence team, providing insights across all games with specific focus on social referrals, game mechanics, and marketing campaign effectiveness.