Are there any resources on how to properly format raw data t make it most useful for display on a map? I'm hoping to do a crime map for my city and haven't quite found a good place to start.
Many of the online universities have 'data management' sections as part of their statistics or big data courses. Often using Python/Pandas. Just google'ing for Pandas tutorials will also get you started.
Look into d3.js if you want it in a browser, there are a lot of examples. You'll have to re-format the data probably which might be annoying on a large data set, but I think there are tools out there.