How to keep up with the number of social media platforms? I have no idea which is trending so the best thing to do is ask customers and students. Most replied that they used Instagram and Pinterest with mobile users also liking Snapchat.
I have an Instagram account now to share the images that present themselves from time to time on my travels and I have started two Pinterest boards. One for my publishing business (http://www.prbpnews.info) and one with enterprise and entrepreneur links, especially those with a social element, which is another of my main interests.
I hope you get time to give them a quick view and share some pins https://uk.pinterest.com/peterbirkby/
Two out of three is a reasonable start.