A federated marketplace provides a context-based environment for consumers to purchase products and services directly from an Internet-based search engine results page, without the need to navigate to the sponsoring merchant's Web site. Detailed descriptions of sponsoring merchants' products and services are presented directly within the search result Web page, for example, as a layer that may be activated by consumer indications of interest. Meta data identifying the sponsoring merchant's goods or services may be retrieved from the sponsoring merchant's Web site, either directly or by a search robot, and catalogued within the marketplace. A particular tagging schema may be used to provide Meta data identifying product data for retrieval. An immediate download of a product to a consumer may commence upon purchase.