Geomancer is a tool with a simple and powerful purpose: to make it easier for journalists on deadline to add context to their data sets by finding and merging geographically related data. Have a set of county-level data and want to add demographic data for those counties? That's the sort of thing Geomancer is built to help you do. Geomancer is free, open-source and built to be extended, so you can install Geomancer for your newsroom and start adding your favorite geographically tagged data. Join us for a walkthrough of the tool, an overview of the installation process and a peek into what it takes to add new data sources to your Geomancer.