Sometimes you get letters from children: My mama or my daddy have lost their jobs, is there something you can do to help?

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Artists and writers have been known to call this experience "flow, " that moment when you become lost in the process of creating something, because you love the work and the goal means something to you.

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But it also hammers home a digital-era lesson that common sense suggests would have been clear a decade ago, but which example after example shows remains lost on many of us: If you share something with anyone on the Web, it's liable to be shared with everyone on the Web.

CNN: Lessons from the sorority-girl e-mail rant