1. A method comprising: with one or more special purpose computing devices coupled to a memory: for at least one of a plurality of segmented portions associated with at least one of a plurality of displayable web pages as represented by one or more digital signals of one or more data files stored in said memory, using one or more machine learned models to: identify one or more feature properties associated with said segmented portion within said one or more data files, and/or otherwise inferable from said one or more data files, and classify said at least one of said plurality of segmented portions as being at least one of a plurality of segment types based, at least in part, on said one or more identified feature properties; and storing one or more digital signals in said memory as part of an index associated with said plurality of segmented portions, said index being based, at least in part, on said segment type.