In one embodiment, a limited amount of financial information related to each of a plurality of financial instruments is displayed on a display screen of a computer. A user chooses a financial instrument of the plurality of financial instruments. A plurality of elements are shown on the display screen, each being associated with a different type of additional information supplemental of the limited amount of financial information. Each element is associated with a preferred remote data source chosen by the user. When a particular element is chosen by the user, additional information of the type associated with the particular element related to the chosen financial instrument is retrieved by constructing a uniform resource locator (URL) that combines a first financial instrument-independent URL portion that is specific to the preferred remote data source and a second financial instrument-specific URL portion that is specific to the chosen financial instrument.