Everyone seems to flock toward Pinterest these days, delighted by its numerous boards allowing them to bookmark Internet ephemera they find valuable and worth sharing. Numerous libraries — be they specialty, public, or affiliated with a school — have harnessed its popularity to push education and literacy causes to the digital generation. Such a strategy thankfully seems to be succeeding swimmingly. Some of the best-curated Pinterest accounts out there fuse old and new into a spectacularly informative feast for the mind. And sometimes gullet, for those who enjoy posting links to edible crafts.