The document discusses personal learning networks (PLNs) and how they can help educators reach their next highest level (NHL) by providing guidance, learning opportunities, answers to questions, and the benefit of others' knowledge and experience. It notes that PLNs can incorporate social networks and lists some specific social media tools that could be part of a PLN, including blogs, aggregators, microblogging, social bookmarking, wikis, and podcasts. It encourages the reader to develop their own PLN but warns that they should check with their tech department regarding acceptable use policies at work.