Melanie Mathos and Chad Norman presented at #SXSW. A couple highlights from their book 101 Social Media Tactics for Nonprofits

• Nonprofit membership to YouTube allows you at add annotations to videos and direct people to links that are outside of Google/YouTube sphere (no allowed to individual users).
• Add FourSquare check-in locations and details related to your programs or services.  This is great for causes that have not headquarters or are range over a variety of locations.  Consider the impact a land trust with many preserves.
• More causes are using Pinterest to link images to the organization’s website and blogs.
• Develop a social media dashboard using Google Analytics.
• Publish photo from your nonprofit under Flickr: Creative Commons to gain additional marketing reach.