The present disclosure provides a computer-implemented method/system for facilitating communications between service providers and potential customers for services. The computer-implemented method/system provides a marketplace for interactions, both online and off-line, between service providers and potential customers, including purchasing groups, particularly buyer-driven service-related interactions. The marketplace advantageously allows categorization, key word searching, group purchasing, service packaging, data mining, auctions and other commercial features and functionality. The computer-implemented method/system also supports holographic imagery, e.g., in the form of virtual assistants, that facilitates marketplace-related activities. Based on the computer-implemented method/system, service providers are able to efficiently and cost effectively extend the reach of their marketing and promotional activities to a wide range of additional customers, and customers are able to initiate access service providers ideally suited to meet their needs, i.e., buyer-driven commerce, at desirable prices and according to required timeframes.