I like this article from the Poynter Institute:
http://preview.tinyurl.com/4qu3fgu
Just as white space on a page draws attention to what is most visually important, digital white space can help us focus on those ideas that take some time to formulate.
What he is discussing is how we spend so much time accumulating data and information we don't take the time to process it, think about it.
I was surprised to read what he says about the fact that our obsession with packing information and communications didn't start in the digital age. He mentions even peers of Thoreau finding it difficult to enjoy life without the distraction of "this place called the post office."
The writer also cited a Roman philosopher who bemoaned people oversharing intimate details of their lives. (early Twitterers?)
edited for typo