Greg Franko is a 24 year-old JavaScript Engineer at AddThis and the maintainer of several popular open source JavaScript projects. Greg is also a technical writer who blogs regularly at http://gregfranko.com and has contributed to the O'Reilly open source book Backbone.js Fundamentals.Greg is currently a lead JavaScript Developer at AddThis.com and the popular AddThis third-party tool suite. Greg has also worked as a software engineer at AOL, where he created the mobile web registration apps for AOL.com, AOL Mail, MapQuest, Aim, and The Huffington Post.