Not to be confused with Zingerman's Next Door

"Nextdoor is the private social network for your neighborhood." 

Ann Arbor: https://nextdoor.com/city/ann-arbor--mi/

The names of the neighborhoods that Nextdoor uses are not always those that people in the know use, and there are gaps where people live that no "neighborhood" exists, even though there's a perfectly good "neighborhood" nearby.