IBM just Launched Tool to Help Businesses Visualize Social Networks according to CNN Money:

"..Developed by IBM Research, Atlas has four Web 2.0-based components — My Net, Find, Reach and Net. These components help users spot the important connections and the relationships between various groups and navigate their personal and corporate networks.

The Net component of Atlas provides a visual indication of the important hubs among topic experts and informal groups that have developed while working on similar projects. Users can then identify communication gaps or bottle-necks between groups and manage skills across the organization. My Net offers similar capabilities for a user's personal network. For example, a salesperson can better manage and understand their social networks making sure they have connections across the right topic areas.

Reach, the social software dashboard feature in Atlas, helps users navigate the up to six degrees of separation that divide them from a colleague. The dashboard shows users the shortest path to reach an expert and ranks the expert based on the level of interaction across the network. For example, Jim needs more information on compliance regulations in the financial services industry to close an important deal. His social dashboard shows him that Barb is an expert in compliance and is active in various communities. Jim can also see that his teammate Matthew reports to Denise, who co-authors a blog on compliance regulations with Barb. By using his social network Jim can connect with Barb faster to get the information he needs to close the deal.

The Find component of Atlas builds upon core Lotus Connections expertise capabilities by taking searches beyond the corporate directory to include results based on social data such as reporting structures, blogs and communities. Users can customize their search criteria to refine the search based on location, corporate structure or degrees of separation. Results are sorted based on the collaborative ranking assigned to a topic expert."

The IBM page detailing the Social Network Analysis Offering is titled: Software assets for Lotus and WebSphere Portal product where you can find out more information about IBM Atlas for Lotus Connections>