What to do with Ideas

Cute site. I had never seen it before...

What should be done with ideas? We all have a ton of them - or there is no shortage good ones. I think many of us feel like we need to keep them quiet in case we decide to use them... but we actually never will us all of them.

It seem like a pretty common theme in stories/post on HN that ideas are really pretty worthless. The real value is in how they are implemented.