Evernote looks cool. However, can you use it to discuss ideas with co-workers easily? From what I saw it looks like a personal note taking app rather than a 'discuss ideas and arrive at actionable items' app. Just trying to get your perspective on this.

Kindling also looks pretty neat but they don't mention their pricing anywhere

Hmm, I'd imagine that most big organizations already have something like Kindling already. Yahoo! did when I worked there for instance.