OurMaps A Spatial Justice Toolkit for Grassroots Organizing

ArcGIS Online

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Provided by ESRI, the world largest GIS software maker, ArcGIS online allow users to add a large variety of format in its hosted platform and share it publicly. The platform works completely online and can be integrated with ESRI’s professional software. The advantage is that ArcGIS supports a wide range of GIS specific formats and also gives you the ability to create shapes and add markers online. The downside is that the application isn’t completely free, it isn’t open source and its community is generally populated by GIS professionals.