A method and apparatus for local advertising. Internet Service Providers (ISPs) or proxies owned by an ISP insert advertisements transmitted from a web host to a client. The advertisement may be stored in the proxy's cache or may be retrieved from a web server for an advertiser. By providing the ISP...http://www.google.es/patents/US6487538?utm_source=gb-gplus-sharePatente US6487538 - Method and apparatus for local advertising
