15. A computer-program product for composing a web page, comprising: a non-transitory computer readable storage medium storing one or more programs for execution by one or more processors on a server, the one or more programs comprising: instructions, which, when executed, transmit an authoring web page including an embedded authoring tool to a client computer of a publisher of the web page using a network, the authoring tool for composing the web page; and instructions, which, when executed, receive from the client computer web-page content corresponding to the composed web page, wherein the composed web page includes one or more advertisement regions that are placeholders designated for displaying one or more advertisements having one or more links to one or more content locations; wherein the composed web page is configured for display at run-time at respective clients of visitors who download the composed web page from a web page server; and wherein the one or more advertisement regions do not contain any of the web-page content.
15. A computer-program product for composing a web page, comprising: a non-transitory computer readable storage medium storing one or more programs for execution by one or more processors on a server, the one or more programs comprising: instructions, which, when executed, transmit an authoring web page including an embedded authoring tool to a client computer of a publisher of the web page using a network, the authoring tool for composing the web page; and instructions, which, when executed, receive from the client computer web-page content corresponding to the composed web page, wherein the composed web page includes one or more advertisement regions that are placeholders designated for displaying one or more advertisements having one or more links to one or more content locations; wherein the composed web page is configured for display at run-time at respective clients of visitors who download the composed web page from a web page server; and wherein the one or more advertisement regions do not contain any of the web-page content. 20. The computer program product of claim 15 , wherein the advertisements are based on context terms, provided by the publisher of the composed web page, that summarize the web-page content.