gistmap
▻https://github.com/mgax/gistmap/wiki
GistMap is a service for publishing maps, with no backend infrastructure, just static files and public services. It works by downloading a configuration file from Gist, then fetching #geojson/#topojson from any CORS-enabled URL, and tabular #data files from Google Spreadsheet, then rendering them in the browser. Here are some examples
#cartographie via @francoisbriatte