Rich media mobile ads include elements that people can interact with in some way, for example by tapping the screen to move a character in a game or swiping it to reveal a hidden image.
Consider taking corporate intranets mobile and adding elements of twitter, linkedin, news feeds, create employee profiles where they are able to publish their personal research and expertise blog for the internal customers of their department and where departments can freely review these areas to increase thought leadership among the managers and senior staff.