14. A non-transitory memory device storing: one or more instructions which, when executed by one or more processors, cause the one or more processors to receive, from a first user, one or more comments related to a first document; one or more instructions which, when executed by the one or more processors, cause the one or more processors to identify a second document that is not identical to the first document and includes at least a threshold amount of content from the first document; one or more instructions which, when executed by the one or more processors, cause the one or more processors to determine a document identifier associated with the second document; one or more instructions which, when executed by the one or more processors, cause the one or more processors to store information that includes the one or more comments related to the first document and the document identifier associated with the second document; one or more instructions which, when executed by the one or more processors, cause the one or more processors to associate the one or more comments related to the first document with the document identifier associated with the second document; one or more instructions which, when executed by the one or more processors, cause the one or more processors to form a web document that, when rendered, includes a first portion and a second portion being different, the first portion comprising content associated with the second document and the second portion comprising the one or more comments related to the first document; and one or more instructions which, when executed by the one or more processors, cause the one or more processors to enable a second user to access the web document.
18. The non-transitory memory device of claim 14 , further storing: one or more instructions to automatically determine a user identifier associated with the first user; and one or more instructions to include, in the stored information, the determined user identifier.