Where do you keep ideas?

How is an idea born? It does not matter. It is important - how not to lose it, develop it, attract like-minded people and possibly turn it into a product.

There is interest, an idea is poked, then it is surrounded by links, names, articles, pictures, dates, other materials.

All this needs to be stored and stored somewhere in the correct order, marked out in relation to tasks - to think over, study, do, contact, discuss ...

Nokia uses the Ideas Project , which allows people to keep a group summary.

What software do you use to keep your notes?