This document discusses marketing sins commonly committed by nonprofits and how social media can help address them. It outlines five sins of nonprofit marketing: 1) lack of market research to understand audiences, 2) ignoring basic marketing principles, 3) communications not focused on consumers, 4) undervaluing content development, and 5) treating marketing as a cost rather than investment. The document then explains how social media can help nonprofits with marketing by allowing two-way communication with stakeholders and easier content distribution. It provides statistics on the reach of key social media platforms like Google, Twitter, and Facebook and argues that nonprofits need to utilize these channels for leads, sales, and engagement.