14. A system comprising: one or more computers executing a search engine configured to receive one or more queries submitted by a user, to identify one or more documents responsive to receiving each of the one or more queries; one or more computers executing a research session manager connected to the search engine, the research session manager configured to obtain first information related to the one or more queries and second information related to behavior of the user with respect to the one or more documents identified in response to the one or more queries and accessed by the user, to automatically generate a research document based on at least the first information and the second information; wherein automatically generating the research document comprises: automatically identifying a research topic based on the first information, and automatically identifying at least one of the one or more documents related to the research topic based on the second information; automatically estimating an amount of time that a user spends reviewing the at least one of the one or more documents; wherein the research session manager is configured to generating a research document including information associated with the research topic and the at least one document, wherein generating the research document comprises including, based on the estimated time, each document in the one or more documents in either a first set of documents, or a second set of documents, and the research document is provided to the user by providing a display area comprising a link for the user to review information about the second set of documents, and in a separate display area by providing the user access to information about the first set of documents via a plurality of user interface elements.
14. A system comprising: one or more computers executing a search engine configured to receive one or more queries submitted by a user, to identify one or more documents responsive to receiving each of the one or more queries; one or more computers executing a research session manager connected to the search engine, the research session manager configured to obtain first information related to the one or more queries and second information related to behavior of the user with respect to the one or more documents identified in response to the one or more queries and accessed by the user, to automatically generate a research document based on at least the first information and the second information; wherein automatically generating the research document comprises: automatically identifying a research topic based on the first information, and automatically identifying at least one of the one or more documents related to the research topic based on the second information; automatically estimating an amount of time that a user spends reviewing the at least one of the one or more documents; wherein the research session manager is configured to generating a research document including information associated with the research topic and the at least one document, wherein generating the research document comprises including, based on the estimated time, each document in the one or more documents in either a first set of documents, or a second set of documents, and the research document is provided to the user by providing a display area comprising a link for the user to review information about the second set of documents, and in a separate display area by providing the user access to information about the first set of documents via a plurality of user interface elements. 15. The system of claim 14 , wherein the one or more documents are accessed by the user while interacting with an information retrieval system.