The Instapaper iPhone app is wonderful for reading web pages later. Some web site's content does not show up very well because the Instapaper parser can't determine which HTML elements contain the content and what is ephemera. To help it, web sites can add CSS classes that point directly at content and non-content. Add the "instapaper_body" class to the parent content element and "instapaper_ignore" to non-content within the content element. See Preview: Community text-parser configuration for more detail.