This document discusses personal learning networks (PLNs) and provides information about their composition and value. It defines a PLN as a uniquely personalized network that can support participatory and continuous learning through social media connections. Knowledge in social media PLNs falls into four categories: social capital, curation, learning new skills, and upskilling current skills. The document also shares 10 lessons learned from a social media evangelist's first year engaging in their PLN and provides contact information for an expert on instructional design and PLNs.