A great way to get started with Salesforce Ideas is to use it to collect feedback on your CRM Rollout. It is incredibly easy to set up and it is included with Professional, Enterprise, or Unlimited Edition license.

You'll have to define the type of feedback and discussions you want to have with your users, but in this example we have created a category for executive sponsorship, change requests, training, best practices, data quality, new tools, and marketing requests. By clicking on the images you can see the type of feedback you might get. This is a great way to be more responsive to the needs of your users and drive broad adoption.