interstitial reading
n.— «For a day filled with IMs and music and slathered over with email, one opportunity for publishers is to promote interstitial reading, reading that is done in the brief moments between other engagements, whether those claims on our attention are other media or simply the wiggle room in a schedule: the time spent waiting for a plane, a doctor, or for a meeting to begin. That’s a huge number of minutes in any day; a good portion of our lives is wasted while we are waiting for the main course to arrive.» —“Interstitial Publishing: A New Market from Wasted Time” by Joseph J. Esposito O’Reilly: Tools of Change for Publishing Dec. 12, 2008. (source: Double-Tongued Dictionary)