Social media has enabled brands to expand their reach beyond a simple Web site or advertisement to reach customers on their own turf and in new, more personal ways. However, many marketers still balk about putting resources behind these efforts because they're unsure if customers will actually respond and/or if they do respond, will they respond positively? While nobody has a crystal ball, we often to point to case studies to help convince wary marketers. In addition to case studies, eMarketer just released a new report called “Marketing on Social Networks: Branding, Buying and Beyond." According to this report: