Some librarians have viewed the Web 2.0 phenomenon as a call to action for understanding, connecting, and collaborating with present and future generations of clientele and colleagues. Others have dismissed the use of these tools in library settings (Library 2.0) as meaningless hyperbole. This paper focuses on ways science librarians can modify and transform service approaches by using peer production, syndicated content, tagging, podcasting, and social networking; explains the barriers and benefits of using Library 2.0 tools to share and enhance scientific content; and offers practical Web 2.0 ideas, activities, and examples that can be used to engage marine biology clientele in a variety of situations and settings.