John Haydon advises nonprofits on marketing strategy and the effective use of blogs, Facebook, Twitter, and other tools. He is a regular contributor to the Huffington Post, an instructor for MarketingProfs University, and the author of Facebook Marketing for Dummies (3rd edition). He has presented at a number of conferences including the Nonprofit Technology Conference, the 140 Character Conference, and BlogWorld. John is also co-founder of 501 Mission Place, an online network for nonprofit leaders, and SocialBrite, a learning hub on social media for nonprofits.