Teaching is indeed the best way to become an expert at something. Whenever I want to learn a new technology I like to hang out in support forums for it and sta

Teaching is indeed the best way to become an expert at something. Whenever I want to learn a new technology I like to hang out in support forums for it and start answering other people's questions. With one particular product, after about 5 years I had the vendor trying to hire me as a support engineer so there can be other tangible benefits aside from you expanding your knowledge as well as helping others.