What Do We Share?

Recently, I got hit with some knowledge from a homeless man whom I noticed must've been sleeping on the streets for just a few weeks.

I got him a Tam's burger and Coke and after saying Thanks to me, he got spiritual for a minute.
Out of everything he laid out, what most caught my attention was this:

"What is it that keeps us together? What is it that we can share......Think about it, young brotha. We can share food...money...knowledge...and most importantly, education."

And the only thing I can think about that we all share is when we click on that "Share" button on Facebook, Twitter, Myspace.