Ordnance Survey expands free mapping service

"OS Open Space, which enables users to build mash-ups of Ordnance Survey maps free of charge, was opened to companies, charities and other organisations from 12 May 2009. Each organisation is limited to 200 unique users each day. The service has been operating since January 2008 but its use was restricted to individuals. Some 1,500 people have registered so far"