Social Media Literacy

What makes us literate?  The ability to read or to speak well are certainly critical components of literacy.  But in this digital age can we process so much divergent information that knowledge becomes so rare? Maybe literacy is more than a bombardment of data that can be turned into bits of recitation.  Social media literacy, as I surmise it, is not a linear thing; rather, it is a carefully understood ability to master an ever-changing technology, creatively access widespread connections and clearly evaluate messages.