In the era of “Big Data,” the challenge of moving the vastly expanded data volumes created and needed by today’s researchers has become central. The old network—the equivalent of an overcrowded two-lane road—is giving way to a more flexible, software-defined network that manages itself and talks with users to help them work smarter. PSC has contributed to expanding and managing the hardware “lanes” and “merges” so that large-scale users can avoid the traffic jams—and just as importantly, avoid creating them. The Web10G collaboration between PSC and the National Center for Supercomputing Applications won an NSF grant to create a “dashboard” for networking users. Employing network data extracted by earlier Web10G work, the tool will allow nontechnical users to spot network slowdowns and report them to system administrators for repair. To read further, please visit http://www.psc.edu/index.php/biannual/934-building-a-21st-centry-data-highway.