I'm a bit tardy in reporting this one but there was an interesting article on the BBC website recently about how Google is helping academics around the world to exchange huge amounts of data.
The firm's open source team is working on ways to physically transfer huge data sets up to 120 terabytes in size. Google sends scientists a hard drive system and then copies it before passing it on to other researchers. It hopes that one day the data it helps to swap will be available to the public.On the legal perspective the article says,
Google keeps a copy and the data is always in an open format, or in the public domain or perhaps covered by a creative commons license