Everyone knows that the best Tumblrs aren't the ones with your artsy photographs, or amateur poetry, or your high school burn book. No, Tumblr is at its best when it's serving up a simple, humorous concept, preferably one that can be crowd sourced for new content so that you can be even more bitter about how little effort it took when the creators sign a six-figure book deal with Urban Outfitters. But as L.A. dwellers, few Tumblrs have delighted us as much as Rich Kids Of Instagram, a collection of gaudy lifestyle photos of lil' heirs and heiresses that are barely old enough to earn paper-route money. More»