Every innovation is perceived as siesmic, like a Tsunami it washes over everything. I like the digital ocean metaphor ...
In relation to H800 and the Week 1 activities the introduction and final chapter of Stephen Lax's book covers the communications innovations of the last century + enough to inform.
And whilst this is the topic for H807 'Innovations in E-learning' I recommend this. I like him so much I bought copies to give to friends; I don't know if they were grateful.
Is it available on Kindle?