1) Google hangouts Google+ provides the opportunity for live video chats with a group of people. Many experts are now using scheduled chats to demonstrate their services and help others. It’s a great thing to try.
2) Facebook groups A lot of the real interaction on Facebook is happening in the groups. They are easy to set up and run, so why not create one in your area of expertise?
3) Twitter chats These have been around for some time, and attract hundreds of users who gather at the same time each week to exchange information and answer questions. Being the organiser is a great way to position yourself as an expert.
4) Go live on YouTube Live streaming on YouTube lets you broadcast just as though you were on TV, and your audience will probably be more engaged.
5) Blog controversially People love to hear a well-argued contrary view. Pick one issue each week and write your own alternative view on it. You will quickly build a following.