You can’t go 10 minutes without hearing about data these days. “Data blogs.” “Big data.” “Data protection.” “Data.” “Daahta.”

And let’s face it – whether it’s about ‘men in black’ reading our emails or some MP claiming expenses for his dog-sitter, a lot of news is shaped by how information is stored, secured or shared.

But what is ‘open data’, and how does it fit in? Here are 10 things you need to know.