Polls: Thomas Pittman can help you get feedback from your users with polls embedded in your pages or that "pop-up". They can easily be administered by non-technical users and results can be archived and logged. Once users vote, they can see poll results and technologies can be used to make sure they can't vote in the poll again including IP address recognition and cookies.
Tremendous cost savings is achieved over alternatives by taking advantage of open source and other solutions that will save you money.