1. A contextual content delivery system operably connected to one or more publishers via a data communications network, the system comprising: a computing device configured to: identify one or more conventional hyperlinks in a document; determine a context associated with each of the identified hyperlinks; select, for each of the identified hyperlinks, one of a plurality of bubble types based on a uniform resource locator extracted from the identified hyperlink; wherein each of the bubbles comprises a first display area and a second display area; for each of the identified hyperlinks: a) select content for the first display area of the associated bubble type based on the uniform resource locator extracted from the identified hyperlink; and b) select content for the second display area of the bubble type based on the determined context of the identified hyperlink; and convert each of the identified hyperlinks to an enhanced hyperlink for invoking the associated bubble type and content.
1. A contextual content delivery system operably connected to one or more publishers via a data communications network, the system comprising: a computing device configured to: identify one or more conventional hyperlinks in a document; determine a context associated with each of the identified hyperlinks; select, for each of the identified hyperlinks, one of a plurality of bubble types based on a uniform resource locator extracted from the identified hyperlink; wherein each of the bubbles comprises a first display area and a second display area; for each of the identified hyperlinks: a) select content for the first display area of the associated bubble type based on the uniform resource locator extracted from the identified hyperlink; and b) select content for the second display area of the bubble type based on the determined context of the identified hyperlink; and convert each of the identified hyperlinks to an enhanced hyperlink for invoking the associated bubble type and content. 9. The system of claim 1 , wherein the plurality of bubble types comprise a preview type, the first display area of the preview type comprising an image of at least a portion of a target web page.