Higher ed tech writers are chewing the cud over the not very surprising news that Blackboard is partnering up with major content publishers Cengage, Macmillan, Pearson, John Wiley & Sons and (last year) McGraw-Hill, and that McGraw-Hill itself is now friending everyone in the LMS world.  The language of this new set of deals is that of the soothing murmur: students will now be able to transition seamlessly from Anywhere U via their LMS to centralised content repositories managed by Big…