This document discusses the concept of personal learning environments and networks. It notes that teaching has changed and learning now occurs outside of traditional structures. Personal learning involves having skills for lifelong learning, collaboration in teams regardless of location, social networking, and having a presence both online and offline. Massive open online courses (MOOCs) are mentioned as an example of online learning opportunities. The document also provides an example of how Second Life was used to simulate border crossings for customs and immigration students, improving their training and test scores.