In the US, this would be "Google Maps Reveals Widespread Tax Evasion"
In the UK, even before Google got in there, the government was using spy satellites to check on things like farm subsidies: when a farm submits a claim saying there's a 100 acre patch empty (to claim "setaside" payments) or has a highly subsidised crop growing, it's quick and easy to check a satellite photo and know if it's really only 90 acres - or if only the strip nearest the road is as claimed, with a big patch of some more profitable crop hidden inside. Compared to the cost of sending someone there by car to inspect the whole field on foot, using satellites (which of course they had in orbit anyway, for more predictable purposes) apparently it saved a fortune.