Abstract: Machines and methods for optimizing data storage among a plurality of data storage repositories are provided. The method comprises processing a data request submitted for storing data on one or more data storage mediums; determining whether duplicate copies of the data are to be maintained on more than one storage medium so that established quality of service requirements are met; and managing duplicate copies of the data on said one or more data storage mediums to meet the established quality of service requirements while servicing the data request.

Abstract: A method and system for ranking Web pages in a Web search engine is described. One illustrative embodiment receives a Web search query from a particular user, the query including at least one keyword; identifies one or more Web pages that contain the at least one keyword; determines, for each of the one or more Web pages, a raw page ranking; adjusts the raw page ranking of each of at least one Web page among the one or more Web pages based on direct evidence of how interesting that Web page is to users to produce an adjusted page ranking, the direct evidence being derived from clickstream data collected from the users; and presents, as search results, the at least one Web page to the particular user in accordance with the adjusted page rankings.

Abstract: A computer-implemented method for providing hypertext content to a mobile device may include obtaining a network-accessible electronic document that has content and an image, advertising material, or a plurality of similarly formatted hyperlinks. The network-accessible electronic document may be reformatted by collapsing the image, the advertising material, or the plurality of similarly formatted hyperlinks into a first expandable display element. The first expandable display element and at least a portion of the content may be provided for display in a first page on the mobile device. The method may further include receiving input that selects the first expandable display element. The first expandable display element may be reformatted into an image, advertising material, or a plurality of hyperlinks. The image, the advertising material or the plurality of hyperlinks may be provided, along with at least a portion of the content, for display in a second page on the mobile device.