XML and XSL provide a powerful metaphor for separating content from presentation. Content can be generated, assembled, and personalized from a variety of sources and media. Using XSL stylesheets matched to the end-user's environment, the content can be formatted and rendered to match the delivery platform, program, and connection.

Using next-generation technologies, the rendering can also be deferred to the individual devices, freeing servers to concentrate on generating highly targeted and personalized content.

This paper presents an application architecture that can be used to implement a "generate once, display anywhere" scheme for Web-based content delivery.

The underlying technology is in use by EarthLink Networks Inc., the largest independent Internet Service Provider in the U.S. to reach 3+ million users, from desktop browsers, to Internet-enabled cell phones.