I have not used PInterest, but see that as a very social/sharing way of exporting your interests to the world. Speaking on behalf of all the introverts of the world (like the rest of us are going to speak for ourselves??) we want to keep our hand closer to the vest. But I like the idea of creative play and see the value (but it's hard to do while meeting the demands of the workday). What's interesting to me, is I keep finding your blog pertinent wrt computer design - not writing/authorship. Creativity brings out the best of us, regardless of the field.