How does innovation flourish?

I have always wondered where you'd go if you had an idea that you think could help others that's also, in your mind, ahead of it's time. I just came across Nesta an organisation set up to help those with ideas that can help to get those ideas in place and working.

Thought it would be useful in time. I know the title of the post suggests lots more. Hopefully I'll add to this in time. Just wanted to put it up here now.