Login or register (free and only takes a few minutes) to participate in this question.
You will also have access to many other tools and opportunities designed for those who have language-related jobs (or are passionate about them). Participation is free and the site has a strict confidentiality policy.
I have heard idea pool quiet often! However I would agree it sounds awkard if not more. I think "pool of ideas" sounds better. Most probably the partiall word origin is English, since "pool" is not originally German! :)