Abstract: Disclosed are novel methods and apparatus for provision of efficient, effective, and/or flexible client-side search engines. In accordance with an embodiment of the present invention, a client-side search engine is disclosed. The search engine includes: a delivery engine; content data accessible by the delivery engine; a data storage to store organizational data corresponding to the content data; a browser coupled to the delivery engine to communicate with the delivery engine; and a search engine coupled between the browser and the delivery engine to perform a search in accordance with one or more search terms provided by the browser.