And expectations differ across those scholastic landscapes: A professor at a teaching-heavy liberal arts university, for example, might have four or five times the teaching load, course planning, and grading of one at a large research-oriented institution but less in the way of sweating late nights, winter breaks, and most summers over hitting research grant deadlines.

FORBES: Do College Professors Have Less Stress?

In May, the company announced that it was planning unspecified new routes, and recently the passenger load reached the "upper 60% range, " says Lebron.

FORBES: No Rest For A Weary Start-Up

The exchange added that it was planning to shut down for a couple of hours to add servers to help cope with the load.

BBC: Minted bitcoins