A bit old (2004) but interesting Ted Talk by Chris Anderson, Wired Magazine’s editor-in-chief and author of the “Long Tail” book and concept – “How endless choice is creating unlimited demand”.

In this particular video, Chris presents the idea that each technology goes through four different key stages – “setting the right price, gaining market share, displacing an established technology and, finally, becoming ubiquitous” - and supports this with the analysis of a bunch of different technologies.