The invention allows a user to enter a search criteria in a search form once and search multiple web services, search engines and web pages without the need for repeatedly re-creating the search criteria for each web service or search engine because of different and varying supported formats. Once the user has defined their search query, the search query is passed to a query manager in the browser application for formatting the search criteria into a generic query format. The generic query format provides a unified and generic interface to all other query mechanisms supported by different web services, search engines and web pages.