I learn almost everything off the internet, and so does my start-up team. Peter Thiel funded Declara helps us easily annotate, draw insights, have conversations and much more on everything we are reading/watching/learning today. We can highlight insights, tag our team members, have public or private conversations.
So blog articles, TED videos, White papers or whatever it is - almost everything on the internet can be ingested, categorized, annotated etc. its pretty darn cool.
Mobile Growth by Branch