Openness: everyone’s at it.  All of a sudden higher education is a hive of managed promiscuity, and it’s only a matter of time before we’re all throwing our keys into the fruitbowl. First Pearson announce (and, at last, demonstrate) their new “free, open, easy, amazing” OpenClass. Now Blackboard have announced a more open approach to content developed by academics and hosted on Blackboard sites.  As Audrey Watters points out quietly, the game-changing technology here is … a ‘share’ button.  What…