Start by reading up on "open source intelligence," which is just a fancy way of saying "a whole bunch of web scraping." There's a lot of info you can gather fro

Start by reading up on "open source intelligence," which is just a fancy way of saying "a whole bunch of web scraping." There's a lot of info you can gather from scraping public/semi-public data sources, applying some automated analysis, and overlaying info on maps. Then all you've got to do is find a government agency willing to pay you for it. Or maybe you could build an army of twitter bots, write some sockpuppet management software, and sell that... I hear the US is lagging behind its enemies in that regard.