David Kernohan likes to joke that he has a disruption klaxon that sounds whenever that over-used term is deployed. It must have sounded like a nuclear attack warning when reading this educause piece (which he pointed me at, and which Pat Lockley gives the perfect, hilarious response to). Now, I'll confess, I've used the D word in the past. I liked Christensen's first book, it was well researched and well argued. But like so many concepts it has been misapplied to the point where it is meaningless.
Via Alastair Creelman