When I’m speaking and consulting, I frequently get asked by clients what the most platforms are and which one’s they should be on. The question is actually more complex than just finding the most popular platforms. In part, your question should be:
What do you want to do and what is the best social media tool to achieve that outcome?
The other question is…
Who is your audience and what are their demographics?
Individuals with different identities and demographic characteristics use different social media platforms and can also use the same platforms differently. You need to delve a bit deeper. The SlideShare below provides some examples:
Statistics from the Pew Internet and American Life Project’s 2104 social media update (http://www.pewinternet.org/2015/01/09/social-media-update-2014/).