David Meerman Scott is a best-selling author and popular keynote speaker on the topics of viral and online marketing as well as the convergence of web marketing, digital media and online PR. One of his most popular books, The New Rules of Marketing and PR: How to use news releases, blogs, viral marketing and online media to reach buyers directly , was a real eye opener for a lot of companies trying to make sense of where blogs, press releases and search marketing fit together.