Twitter takes the idea of "executive summary" and refines it to the most diminutive. Twitter's beauty comes from the speed of data transfer, as well as connecting trust agents to incentivize readership. Its downside: sacrificing depth for speed. With the mass of data blasting down the Twitter pipes, headlines replace depth. Finding the valuable, the needle within the haystack stares at us. Thus the value of our followees. The people we choose to follow capture our priorities, our interests and passions. Filtering the grand thoroughfare in this way greatly expands what trade pubs were attempting to do, in the magazine era's heyday. And the internet's grabs array of knowledge becomes more manageable. Or more so.