Abstract: A method of providing community networking services in an organization creates a graph which has a plurality of people nodes representing persons in the organization and a plurality of content nodes representing content objects authored by the persons. The nodes are connected by edges, which include author edges linking the content objects to the persons and similarity edges each linking two content objects and having a similarity value indicative of a conceptual similarity between said two content objects. The graph is analyzed to compute a relevance value between a focus node and a query node in the graph.