13. A method comprising: identifying a graphical document where the graphical document includes a hypertext link to a second document; determining whether the second document can be accessed via the hypertext link; in response to determining that the second document can be accessed via the hypertext link: accessing the second document via the hypertext link; and evaluating, by one or more processing devices, the second document to identify one or more concepts related to the second document; associating the one or more concepts identified from the second document with the graphical document; receiving a request for a document including one or more request terms; comparing the one or more request terms and the one or more concepts identified from the second document; and providing the graphical document responsive to the request based on the comparison if the one or more request terms match the one or more concepts identified from the second document.
13. A method comprising: identifying a graphical document where the graphical document includes a hypertext link to a second document; determining whether the second document can be accessed via the hypertext link; in response to determining that the second document can be accessed via the hypertext link: accessing the second document via the hypertext link; and evaluating, by one or more processing devices, the second document to identify one or more concepts related to the second document; associating the one or more concepts identified from the second document with the graphical document; receiving a request for a document including one or more request terms; comparing the one or more request terms and the one or more concepts identified from the second document; and providing the graphical document responsive to the request based on the comparison if the one or more request terms match the one or more concepts identified from the second document. 20. The method of claim 13 , wherein determining whether the second document can be accessed via the hypertext link comprises determining whether the second document properly loads in a web browser application.