8. An apparatus, comprising: means for identifying a set of documents from electronically stored information (ESI), wherein the set of documents is responsive to a request for electronic discovery; means for performing an electronic analysis of the set of documents, wherein the means for performing the electronic analysis further comprises means for identifying attributes of the set of documents; means for storing results of the electronic analysis in a repository of case knowledge, wherein the results comprise the attributes; means for automatically generating search parameters for at least one search query based on the repository of case knowledge; means for providing the search parameters as output; means for identifying an additional set of documents from the ESI, wherein the means for identifying the additional set of documents further comprises means for performing the at least one search query against the ESI the at least one search query comprises the search parameters, and the additional set of documents is identified by the initial search query, and the additional set of documents is responsive to the request for electronic discovery; and means for automatically tagging the additional set of documents with an indication that the additional set of documents should be held for litigation; means for storing the search parameters in the repository of case knowledge; and means for monitoring use of the repository case knowledge to produce audit information.
8. An apparatus, comprising: means for identifying a set of documents from electronically stored information (ESI), wherein the set of documents is responsive to a request for electronic discovery; means for performing an electronic analysis of the set of documents, wherein the means for performing the electronic analysis further comprises means for identifying attributes of the set of documents; means for storing results of the electronic analysis in a repository of case knowledge, wherein the results comprise the attributes; means for automatically generating search parameters for at least one search query based on the repository of case knowledge; means for providing the search parameters as output; means for identifying an additional set of documents from the ESI, wherein the means for identifying the additional set of documents further comprises means for performing the at least one search query against the ESI the at least one search query comprises the search parameters, and the additional set of documents is identified by the initial search query, and the additional set of documents is responsive to the request for electronic discovery; and means for automatically tagging the additional set of documents with an indication that the additional set of documents should be held for litigation; means for storing the search parameters in the repository of case knowledge; and means for monitoring use of the repository case knowledge to produce audit information. 9. The apparatus of claim 8 , wherein the attributes comprise one or more of: (1) attributes related to one or more persons associated with the set of documents; (2) attributes related to files comprising the set of documents; (3) attributes related to text contents of the set of documents; (4) newly identified attributes; (5) stemmed keywords; and (6) counts of responsive documents.