Social media is important for organizations to develop communities, empower people, and engage in conversations. Twitter is a microblogging platform that allows users to send short updates and follow others. It grew over 1,900% from 2008 to 2009 and now has over 20 million users. GlobalGiving uses Twitter to develop its community, empower people as ambassadors, engage in conversation, and promote opportunities like donations and campaigns. Hashtags, retweets, and direct messages are common on Twitter to expand reach and join discussions.