An easy way to test your MIDI data is integrated into the free and tasty puredata.

ENGADGET: How-To Control Csound with a Custom Midi Controller: Hardware (2 of 2)

Universities, which still enjoy free access to all weather data, are under suspicion, but the main way around the rules is to use the Internet, where the notion of national markets, used by Regulation 40, simply does not apply.

ECONOMIST: Weather

Apparently when Twitter really arrived on the scene as a popular social media zeitgeist, while most people saw it as a way to spread information, researchers saw it as an opportunity for lots of free data.

FORBES: Can Twitter Predict the Stock Market?

White space technology will be one way of meeting the growing demand for data in the UK. Ofcom is separately planning to free up more spectrum in the future for the next generation of high-speed data services, already dubbed '5G'.

ENGADGET: UK regulator wants white space wireless service in 2014, starts trials this fall