Abstract: A system is provided for use with a data providing portion and first, second, and third user devices. The data providing portion can provide initial data having a plurality of data entries. The system includes a first processing portion that can generate a ranking of the data entries based on a weighting factor; a second processing portion that can provide the first user device with a first level of access and which can generate a second ranking; a third processing portion that can provide the second user device with a second level of access to one of the ranking and the second ranking; and a fourth processing portion that can provide the third user device with a third level of access to one of the ranking and the second ranking.

Abstract: A system and method which may log a real number of views or impressions of an element within a web page, e.g., an advertisement. Instead of sending impression data to an impression logging unit by a web page server when an element is included in a web page, the invention may collect impression data at a user terminal and send the impression data to the impression logging unit when the element actually appears within a user's view port, which is the visible area of his browser window. Consequently, only what is actually seen by users, not everything that could be seen on a web page, may be logged by the impression logging unit.

Abstract: A method of searching for a seller of a product. The method comprises the steps of: indicating a product; indicating a geographical search location; and searching for a seller of the product that is located within a search distance of the geographical search location.

Abstract: A method of searching a data store, the data store storing a plurality of offers, each offer comprising information about a corresponding product and a corresponding seller for that offer, the method comprising the steps of: receiving, from each of a plurality of sellers, one or more offers; storing the offers received from the plurality of sellers in the data store; and filtering the stored offers by: receiving one or more filter metrics, each filter metric defining a corresponding filter; and identifying one or more of the stored offers that satisfy each filter condition.

Abstract: A method of searching for a seller of a product. The method comprises the steps of: indicating a product; indicating a geographical search location; and searching for a seller of the product that is located within a search distance of the geographical search location.