"Claim: (Ex Parte Borenstein) A method for providing catalog information for presentation to a user of a store in an electronic commerce system, comprising the steps of… BPAI: while the storage of information in independent claim 1 could arguably be done as a mental process, the recitation of a structured relationship between multiple stores that requires “path information” inherently implies that this information must be stored on a computer or database. This “particular” computer or database is sufficient structure to meet the machine prong of the machine-or-transformation test of In re Bilski. As independent claim 15 recites a computer program product, it is not a method claim that must be analyzed under In re Bilski."
Source: http://271patent.blogspot.com/2009/06/bilski-at-bpai-what-mess-part-1.html


