Chronology of social networks - infographics

"There are a growing number of books, websites and works of art on the subject of urban rail and metro map design and use. There are now hundreds of examples of diagrams in an urban rail or metro map style that are used to represent everything from other transit networks like buses and national rail services to sewerage systems and Derbyshire public houses.
One of the most well-known adaptations of an urban rail map was The Great Bear by Simon Patterson. First shown in 1992 nominated for the Turner Prize The Great Bear replaces station names on the London Underground map with those of explorers, saints, film stars, philosophers and comedians. Other artists such as Scott Rosenbaum, and Ralph Gray have also taken the iconic style of the urban rail map and made new artistic creations ranging from the abstract to the solar system. Following the success of these the idea of adapting other urban rail and metro maps has spread so that now almost every major subway or rapid transit system with a map has been doctored with different names, often anagrams of the original station name." [Transit map. Wikipedia]
The infographics example "Chronology of social networks" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Metro Map solution from the Maps area of ConceptDraw Solution Park.