Many Eyes

On Many Eyes everybody can
 * View and discuss visualizations
 * View and discuss data sets
 * Create visualizations from existing data sets

Many Eyes site

There is also the possibility to visualize network datasets as network diagrams.

There is also a topic hub about social network datasets. For example check the dataset about XFN

A search for "network" returns many results we need to check. It also has an automatic way to visualize network datasets.

Similar to Swivel.