The document discusses social media tools that can be used for personalized professional development. It begins by defining a personal learning network (PLN) and social media. Several popular social media tools are listed across different media categories like photos, audio, video, bookmarks, and networking. The presenter then shares their personal story of adopting various social media tools over the years since 1999. Key recommendations include focusing on one tool to learn well, using third-party tools to enhance functionality, and finding online mentors. Popular or recommended accounts for tools like Twitter, Ning, blogs, Flickr, Delicious, and newsreaders are also listed.