Would sharing my ideas be ill advised?

As I’ve pointed out in earlier questions I have what I believe are some great ideas that I hope to profit from.

But the fact is that it is hard to get anything from nothing. If I really want to make something work then the best way is to put all my effort behind it and get it to work myself. This takes a long time, and lots of resources. In the end only one of my ideas will come from such an effort if I am diligent, and lucky.

But I have quite a few great ones! So I am trying to get them out there faster so that I can start profiting from them number one, and getting them in front of people who I think would like to benefit from them number two.

So I found someone with a NDA who wants to hear about one. I signed up for the NDA, and I’m prepared to share it. I am also prepared to hear them tell me they are not interested.

The bottom line is I have started working on a couple of my ideas on my own. The others that I believe are full of potential I would also like to see the light of day before they are obsolete. Is sharing them via NDA’s a bad idea, or my only hope?