I found a couple of free courses to share with you today, one for Google Plus and the other for YouTube. Neither of these courses have a fee; all you need is a Google account.
Plus Your Business is a free Google Plus course covering everything from Hangouts to Communities, from Google Semantic Search to Google Authorship. This course is loaded with free training, presentations and resources. http://www.plusyourbusiness.com/
The YouTube Creator Academy is a free online video course that covers the basics to help you get your YouTube Channel going in the right direction. The course is divided into 6 lessons and covers everything from gaining Subscribers and to Channel Analytics, from Design to Branding. I believe this video course is actually owned by YouTube but don't quote me on that. http://creatoracademy.withgoogle.com/