Web 2.0 and social networking tools are playing a growing role in informal learning inside organizations. But there's an odd catch. They work best when employees trust the tools and use them, which is closely related to how much control employees are given and how little is exercised by the learning department. Social media and learning consultant Jane Hart notes that "once individuals and groups do realize they have the power, ability, and tools to learn for themselves, then they will begin to address their own problems informally and quite spontaneously - without the supervision or intervention of a teacher."