Visual Map of 30 Free Online Promotion Websites

Great visual map of the connections between free online sites to promote your content.  Made by Chris Watson at Visualization Magazine.

This visualisation was made to help inform and advertise on how easily and effectively you can use the web 2.0 tools to build an online presence through free sites, feeds, embed and monitor progress/stats.

Chris also has links to all of these icons in his post in case you want to create your own Web 2.0 visual.