Nerd News: Adjuncts and University Teaching

Higher education's dirty little secret?  The existence of an entire nerd serf underclass?  Adjuncts and lecturers do a LOT of the actual teaching of undergrads in many institutions.  Here's something to think about:

... over the last three decades, the number of adjuncts employed across the country skyrocketed by 210 percent while tenure-track faculty hirings rose merely 7 percent.