12. A non-transitory computer-readable medium comprising: one or more instructions which, when executed by at least one processor, cause the at least one processor to identify two or more documents; one or more instructions which, when executed by the at least one processor, cause the at least one processor to determine that a first identified document, of the two or more documents, includes one or more links that lead to scumware; one or more instructions which, when executed by the at least one processor, cause the at least one processor to determine that a second identified document, of the two or more documents, includes scumware; one or more instructions which, when executed by the at least one processor, cause the at least one processor to store, in an index that relates search query terms to documents, first data indicating that the first identified document includes one or more links that lead to scumware; one or more instructions which, when executed by the at least one processor, cause the at least one processor to store, in the document index, second data indicating that the second identified document includes scumware; one or more instructions which, when executed by the at least one processor, cause the at least one processor to provide, for display, a link to the first identified document, a link to the second identified document, a first indication that is based on the first data and indicates that the first identified document includes one or more links that lead to scumware, and a second indication that is based on the second data and indicates that the second identified document includes scumware, where the first indication is different than the second indication; one or more instructions which, when executed by the at least one processor, cause the at least one processor to receive a request from a toolbar, executing on a client computer, for scumware-related information associated with the first identified document, being accessed by a user of the client computer; and one or more instructions which, when executed by the at least one processor, cause the at least one processor to provide, to the client computer and in response to the request, the first data, where the first data indicates a shortest number of links from the first identified document to another document associated with scumware, where the number is more than one, and where the shortest number of links is displayed in a visual indicator in the toolbar.
12. A non-transitory computer-readable medium comprising: one or more instructions which, when executed by at least one processor, cause the at least one processor to identify two or more documents; one or more instructions which, when executed by the at least one processor, cause the at least one processor to determine that a first identified document, of the two or more documents, includes one or more links that lead to scumware; one or more instructions which, when executed by the at least one processor, cause the at least one processor to determine that a second identified document, of the two or more documents, includes scumware; one or more instructions which, when executed by the at least one processor, cause the at least one processor to store, in an index that relates search query terms to documents, first data indicating that the first identified document includes one or more links that lead to scumware; one or more instructions which, when executed by the at least one processor, cause the at least one processor to store, in the document index, second data indicating that the second identified document includes scumware; one or more instructions which, when executed by the at least one processor, cause the at least one processor to provide, for display, a link to the first identified document, a link to the second identified document, a first indication that is based on the first data and indicates that the first identified document includes one or more links that lead to scumware, and a second indication that is based on the second data and indicates that the second identified document includes scumware, where the first indication is different than the second indication; one or more instructions which, when executed by the at least one processor, cause the at least one processor to receive a request from a toolbar, executing on a client computer, for scumware-related information associated with the first identified document, being accessed by a user of the client computer; and one or more instructions which, when executed by the at least one processor, cause the at least one processor to provide, to the client computer and in response to the request, the first data, where the first data indicates a shortest number of links from the first identified document to another document associated with scumware, where the number is more than one, and where the shortest number of links is displayed in a visual indicator in the toolbar. 13. The non-transitory computer-readable medium of claim 12 , further comprising: one or more instructions which, when executed by the at least one processor, cause the at least one processor to provide links to one or more cached versions of at least one of the first identified document or the second identified document, where the one or more cached versions are free of scumware.