The Web works as an open repository of intellectual resources published in the form of Web documents and Web applications. Such intellectual resources include not only multimedia contents but also application tools and services. Pervasive computing denotes an open system of intellectual resources in which users can dynamically select and interoperate some of these intellectual resources to perform their jobs satisfying their dynamically changing demands. In pervasive computing, the ad hoc definition and/or execution of interoperation among computing resources is called federation. While the integration denotes interoperation among computing resources with standard interoperation interfaces, federation denotes interoperation among computing resources without a priori designed interoperation interfaces. We define knowledge federation as federation of intellectual resources published in the form of Web documents, i.e., Web applications. This paper uses the meme media technologies developed by our group to propose a new framework for the ad hoc federation of intellectual resources over the Web, and shows the detail mechanism of this framework.