Corporate and federal leaders are learning that traditional,
hierarchical organizational (org) charts are no longer accurate
depictions of how and by whom work gets done in modern
institutions. They worked well in an era when output was mostly
characterized by a linear, step-by-step process and accurately
reflected work flow. However, in todays environment, where
information, both tacit and explicit, is not only part of the
production process, but also the end-product, the traditional
hierarchical org chart breaks down in describing how work gets
done and, most important, cannot answer the questions, Who knows
what? and Where do I go for information?  Most organizations
have work or socially based networks of employees. The arrival
of social softwareInternet applications that link people
together formally or informallyhas dramatically altered the way
information is shared and how knowledge is created in an
organization. Those applications fundamentally complement
networks: they enhance existing networks and c