[pksebben]

You hit the nail on the head, there. Facebook et al represented a large enough timesink / extreme enough "attention shelf" adjustment that removing them provided a dramatic and measurable change to what I was capable of.

Just try telling people about it, though. I can't count the number of times someone's been telling me that they're depressed b/c they can't accomplish their goals and I've tried to invite them to disconnect, only to come off sounding like a know-it-all. It's a really hard thing to communicate.