There is a lot of data on the web that is inherently location-based, but that is presented in a text-based format (lists of addresses, etc). This repo contains some tools for scraping that data, finding the latitude/longitude of each location, and presenting them on an interactive map.
The main thing so far is the ESDM App. ESDM is a powerful, fun therapy that teaches autistic children critical social/communication skills. Unfortunately finding a therapist can be very hard. This app shows all licensed therapists in the world and how to contact them, so you can find a provider near you.
A secondary app tracks PARIS Violation of water quality in Washington state.