16. A computer-readable medium that stores instructions executable by a computer, the computer-readable medium comprising: one or more instructions to identify documents in a network; one or more instructions to score the identified documents based on a model of a surfer who is likely to make random jumps from certain ones of the identified documents and to follow forward links from certain other ones of the identified documents; and one or more instructions to store the scores for the identified documents.
16. A computer-readable medium that stores instructions executable by a computer, the computer-readable medium comprising: one or more instructions to identify documents in a network; one or more instructions to score the identified documents based on a model of a surfer who is likely to make random jumps from certain ones of the identified documents and to follow forward links from certain other ones of the identified documents; and one or more instructions to store the scores for the identified documents. 22. The computer-readable medium of claim 16 , further comprising: one or more instructions to increase the score of a particular one of the identified documents based on the particular one of the identified documents being pointed to by one or more links from a corresponding one or more of the identified documents, where the corresponding one or more of the identified documents include a root page of a domain.