One of the most controversial aspects of Facebook's re-design announcements last week was the introduction of "frictionless sharing." That's Facebook's term for when something you are reading, listening to or watching is automatically shared to your Facebook Timeline. Up till now, sharing on the social Web has largely been a manual process. You click a Facebook "Like" button, you click the "Check In" button in Foursquare, you click a button to "Re-Tweet" something. With Facebook's frictionless sharing, once you approve a media partner app, all of your activity in that app is automatically shared to Facebook. No need to click any buttons.