14. A method for building an interest profile for a user comprising: performing the following steps using one or more processors: creating an interest profile for a user; capturing an outgoing document; determining an electronic message thread comprising the outgoing document and one or more documents related to the outgoing document which are part of the same conversation as the outgoing document, wherein the one or more documents related to the outgoing document include at least some terms or content not present in the outgoing document, and wherein the one or more documents of the message thread includes a stored incoming document; scanning the message thread for at least one of terms or content to determine at least one item of interest for the user based on the at least one of terms or content of the scanned message thread, wherein the at least one item of interest is not otherwise determinable from the terms or content of the outgoing document, and wherein one or more terms and content of the stored incoming document and of the outgoing document are weighted differently when determining the at least one item of interest; and adding said at least one item of interest to the interest profile.
14. A method for building an interest profile for a user comprising: performing the following steps using one or more processors: creating an interest profile for a user; capturing an outgoing document; determining an electronic message thread comprising the outgoing document and one or more documents related to the outgoing document which are part of the same conversation as the outgoing document, wherein the one or more documents related to the outgoing document include at least some terms or content not present in the outgoing document, and wherein the one or more documents of the message thread includes a stored incoming document; scanning the message thread for at least one of terms or content to determine at least one item of interest for the user based on the at least one of terms or content of the scanned message thread, wherein the at least one item of interest is not otherwise determinable from the terms or content of the outgoing document, and wherein one or more terms and content of the stored incoming document and of the outgoing document are weighted differently when determining the at least one item of interest; and adding said at least one item of interest to the interest profile. 25. The method of claim 14 , wherein the message thread includes a plurality of stored incoming documents and a plurality of stored outgoing documents, wherein the one or more terms and content of the plurality of stored incoming documents is weighted differently from the one or more terms and content of the plurality of outgoing documents when determining the at least one item of interest.