Maria works with communities because she believes in their power to start and sustain movements — beyond the obvious customer service and engagement uses. She help companies harness the power of communities of users, customers, employees and partners to fully transform themselves and their industries. Currently, she is Head of Community at Sidecar. Previously, she built the Yammer global online community from the ground up and worked at Salesforce as "Adoption Czar," helping companies ignite their own communities. You can follow her on Twitter at @themaria or on her blog socialsilk.com.