PR 2.0 refers to using new media and online/interactive techniques for public relations. The document discusses various PR 2.0 methods like viral marketing, buzz marketing, beta testing with opinion leaders, and using brand advocates. It provides examples like how Google used beta testing and word-of-mouth to grow Gmail users, and how a provocative Agent Provocateur video spread virally. Tools for PR 2.0 implementation include blogs, social networks, videos, podcasting, emails and more. The document proposes using a case study about an RJ to illustrate applying these PR 2.0 methods and tools.