Facebook has been a champion in terms of Social Media platforms I've been using. But I'm starting to love Instagram, Youtube, Telegram, and Twitter nowadays. It has been very helpful to me in connecting and expanding my network.
I'm also starting to engage in Medium.com, another promising site as a social media blogging platform.
Sooner, there's another revolutionary platform called Unboxed Network (they have NBOX tokens, a cryptocurrency on ERC-20). They're targetting to kill Facebook.