A week ago, I attended a wonderful sharing by 
I'm sure everyone here is familiar with steemit.
Steemit is not the social media for us to write our post, there are more!
There are other usage:
-photo sharing in steep shot (steemit version of Instagram)
-video sharing in DTube (steemit version of YouTube)
-Musing.io (QnA platform like Quora or Reddit)
-live video in Dlive
And many more interesting platform, steempeak, steepress.