A system for social bookmarking of a resource provided through a Web application that doesn't follow the representational state transfer architectural style (REST). When processing a request for a social bookmarking operation, the system searches for a URL and potentially other resource information within the document object model of a currently loaded Web page. If such resource information is found, it is used to process the requested social bookmarking operation. Otherwise, if such resource information is not found in the document object model, the system uses the URL stored in the location bar of the Web browser to process the requested social bookmarking operation. The system includes semantic information in the DOM of a Web page that is used to identify subsets of content within the Web page that can be socially bookmarked. The semantic information may be stored in what is generally referred to as “microformatting”.