Abstract: A data retrieval system and method of the invention provide automatic retrieval of information based on data placed into, for example, a Windows™ clipboard. A user highlights and cuts (or pastes) data into the clipboard during execution of an application program. A data retriever program periodically reads the clipboard to determine whether new data has been placed therein. Upon finding new data in the clipboard, the data retriever program determines whether the data or a variation thereof satisfies a predetermined criterion. If the criterion is satisfied, the data retriever program initiates a data-retrieval operation, such as a Web-based search, based on the data. If the criterion is not satisfied, the data retriever program does not perform any data-retrieval action. The data retrieval program does not interfere with the clipboard; any application program sharing the clipboard can use data placed therein, e.g., by a paste operation.