Patent ID: 6978266

Claim:
A computer implemented method of operation on one or more data processing machines, the method comprising: determining whether a first document collection comprises at least one document linked to at least one other document of at least one other second document collection; determining a collection rating according to a rating scale for each of said at least one other second document collection if said first document collection is determined to comprise at least one document linked to at least one other document of at least one other second document collection, said collection rating according to the rating scale for each of said at least one other second document collection relating to a desirability of a content of said at least one other second document collection; determining whether said first document collection comprises at least one document being linked by at least one other document of at least one other third document collection; determining a collection rating according to said rating scale for each of said at least one other third document collection if said first document collection is determined to comprise at least one document linked by at least one other third document collection, said collection rating according to the rating scale for each of said at least one other third document collection relating to a desirability of a content of said at least one other third document collection; and determining a link rating according to said rating scale for said first document collection based on either said determined collection rating or ratings according to said rating scale for said at least one other second document collection, or said determined collection rating or ratings according to said rating scale for said at least one other third document collection, or both, depending on whether collection rating or ratings are determined according to said rating scale for said at least one other second document collection, said at least one other third document collection or both.