I love technology, and man, is it helpful. But it also means you're always on. Always findable. Always available to 'just take five minutes' to answer an email, tweet a link for someone, check in quickly on FourSquare.

Between the three, Facebook is literally everyone I've ever shaken hands with at a conference or kissed on the cheek at Easter. Twitter seems to be everyone I am entertained by or I wish to meet some day. Foursquare seems to be everyone I run into on a regular basis. All three of those social graphs are powerful in their own.