This resource is helpful, especially as I'll be trying to convince some sceptics on their podcast on Wednesday on the case for Bitcoin. I've been in Bitcoin since 2009 but still find it hard to articulate fluently, to the uninitiated, a simple and decisive argument for choosing to hold Bitcoin. I've found Peter Van Valkenburgh's arguments very helpful and also the Jerry Britto's "The Case for Electronic Cash" from the Coin Centre. Not 100% Bitcoin related, but part of the crypto currency cannon (yeh I don't care much for the argument that Bitcoin isn't crypto).