Abstract: A method of creating a browser renderable toolbar or helper application, and a network architecture therefore. The browser renderable toolbar obviates the need for separately-installed software while still permitting a user to take advantage of the functionality provided by a traditional toolbar.

Abstract: A method of creating a browser renderable toolbar or helper application, and a network architecture therefore. The browser renderable toolbar obviates the need for separately-installed software while still permitting a user to take advantage of the functionality provided by a traditional toolbar.

Abstract: A method is provided to aggregate a plurality of affinity lists to generate a single aggregated affinity list representing predicted affinities of a particular item, to other items, under a plurality of conditions. Each of the plurality of affinity lists represents an affinity of the particular item, to other items, under a subset of the plurality of conditions that is less than all of the plurality of conditions. For each of the affinity lists, a sub-list is determined corresponding to that affinity list by determining a subset of the entries of that affinity list based on the indicated affinity, and the indicated lifts of the entries of that affinity list. For each entry of the sub-list, a normalization indication is determined for that entry. Based on the determined normalization indications, the single aggregated affinity list is generated. Each entry of the single aggregated affinity list indicates a unique one of the other items as indicated by entries in one or more of the sub-lists.