Wolfram Alpha - The 'Data' Search Engine
Finding that obscure bit of (accurate) data for non-fiction or even fiction can be a bit difficult these days. Especially if you need accuracy vs. hearsay. The following was unknown to even us until recently. Drop by over morning coffee or tea for a quick peek.
Maybe you don't need it for your current work in progress, but you never know for the future ones, so bookmark it. See our “Resources >> Internet >> Seach Engines” section.