From Cave Paintings to the Internet is an amazing online project to document the history of information and media. The project has a huge scope, starting with entries from 2,500,000 BCE right up to the modern day.
The project also provides a great Google Maps based interface to explore the records geographically and thematically. The map allows the user to select from a large number of themes, from archaeology to writing and palaeography. The entries can also be explored by historical era and by regions.
The number of themes that can be explored means that there is sure to be something on this map to interest most users and anyone with even the slightest interest in history will find this great resource.
Very neat! Monte