If you are not able to attend RootsTech 2015 in person, it's good to know that several sessions including the general keynote sessions on Thursday, and Saturday will be streamed live on the home page of RootsTech.org. After the conference, recordings of these sessions will be posted on the website for a limited time.
Visit the streaming schedule link to see what times, session titles, and presenters will be available for viewing via video streaming.