1. A user-interface method of selecting and presenting a collection of content items in which the presentation is ordered at least in part based on analyzing user selections of content items to learn the content preferences of the user according to a context within which the user selected the content and using the learned content preferences to select and order subsequent user content search results when the user is within the same context, the method comprising: providing a set of content items, each content item having at least one associated descriptive term to describe the content item, the content items of the set being organized into categories of related content items; receiving incremental input entered by the user for incrementally identifying desired content items of the set; in response to the incremental input entered by the user, presenting a subset of content items of the set to the user; receiving actions from the user selecting content items of the subset; analyzing the descriptive terms of the selected content items to learn content preferences of the user; determining the context in which the user performed the selection actions, the context including at least one of: geographic location of the user; date; day; time; and the category of the selected content items; associating the determined contexts of the user selection actions with the user content preferences learned from the corresponding user selections; and in response to receiving subsequent incremental input entered by the user, determining a context of said subsequent incremental input and selecting and ordering a collection of content items from the set based on a comparison of the descriptive terms of the content items of the collection with the learned content preferences of the user associated with the determined context in which the user entered the subsequent incremental input.