Gartner has always made use of diagrams and visual representations to support managers in taking better decisions about technology investments.If you’d like to know more, have a look at our case study on Gartner (published at ecch)
They keep updating and improving their products, such as the Magic quadrant and the Hype Cycle, to include interactive features and support for collaborative decision making. In 2009 Gartner has updated and adapted the famous Hype Cycle to the recession:
Sabrina Bresciani, Ph.D. 