His description of the project:
Infographic showing the acquisitions and investments of Microsoft, done as a tube map with each coloured line representing a different industry for each acquisition or investment. Where the stations meet is where the two industries overlap. The key at the bottom displays information about the location on the map of the station (company) the year of acquisition or investment.
Now this thing is absolutely huge but thankfully Randy from Cool Infographics has dropped a full size version of the infographic on Zoom.it for us all to dive deep into the details of the project.