These people are geeks — the very best kind of geeks. The assorted contributors of Streets.MN, a blog dedicated to “land use and transportation” in the Twin Cities, are fanatically devoted academics, civil engineers, bureaucrats, and designers. They’re the sort of people who sit at home watching city council subcommittee meetings about zoning, tweeting links to PDFs of bike path plans. One writer, Max Hailperin, has started a project to catalog his walks through every single neighborhood in Minneapolis. At its best, Streets.MN is a data-driven but engaging conversation about what kind of cities Minneapolis and St. Paul might become. These writers want a Twin Cities that’s friendlier to bicycles, pedestrians, and mass transit. Whether they win that fight remains to be seen, but they sure are easy to root for.