Media Kits for web sites

The media world is getting so complex…reps must know how display ads work with search, social media and mobile platforms. Media sellers have to know much more than their editorial calendar and their audience stats. The reps need more support and their site media kits have to morph into more of a pre-sales educational presentation or presentation, providing more than basic stats like page views and unique visitors. Media kits need to represent digital products with more dynamic information, competitive perspectives, how all the media pieces work together and that integrated media is more than combining pages and banners into a proposal. I am creating new content on this topic and would love to see some best practices and examples of great media kits...can anyone point me to these?