This document discusses personal learning networks (PLNs) and how participating in Twitter chats can help users develop their PLN. It poses common questions people have about PLNs and chats such as what a PLN is, why join chats, and how to get started. The document suggests Twitter can help develop PLNs by connecting users to other educators through chats and unlocking learning opportunities. It encourages readers to get involved in chats to expand their PLN and become better connected learners.