1. A method comprising: using one or more search terms to generate an expertise mining query; executing the expertise mining query; ranking well-structured search items based on search results returned using the expertise mining query; ranking items including authors associated with relevant well-structured search items using an expertise mining algorithm including a number of post-processing operations and a cumulative rank calculation for each item; and automatically providing one or more expanding query terms with an original query as pseudo feedback including one or more ranked authors to provide an expanded query for use in mining expertise information.