Free ebook about how to maximize the potential for viral spread [pdf]
http://www.kristofermencak.com/downloads/viral_thinking.pdfGreat ebook on how to mazimize the pontial for viral spread, both marketing efforts and apps. By Kristofer Mencák, http://www.kristofermencak.com/2011/01/viral-thinking-an-ebook-on-how-to-maximize-viral-spread/