[nekopa]

Interesting. Here is a list of some other resources:

http://www.innovationtools.com/Products/ideamanagement.asp

I looked through a bunch of these when I was approached to make an enterprise level IMS for a large chemical company (30,000+ employees). The software is not complicated, but because of the use of the word "innovation" it becomes rather pricey, very quickly especially when you charge by the seat. I put together a prototype for them, but lost the tender in the end. But its this prototype which I am adapting to put on my website.