Administering discount group purchasing programs, namely, negotiating contracts with providers of travel services, eyeglasses, rental car services, hotel rooms to enable participant members of labor unions, credit unions, travel clubs to obtain discounts on the purchase of their goods or services; Advertising services, namely, cost-per-action on-line advertising; Advertising, marketing and promotional services related to all industries for the purpose of facilitating networking and socializing opportunities for business purposes; Conducting virtual trade show exhibitions online in the field of automobiles, art, crafts; Marketing the goods and services of others by means of location-based messaging; Mobile advertising services for others in the field of dentistry, dental equipment; On-line advertising on a computer network; On-line retail store services featuring subscription boxes containing clothing, cosmetics, quilting supplies; On-line trading services in which users post requests for products and negotiate transactions via the Internet; Online advertising and marketing services in the field of dentistry, dental equipment; Online advertising and marketing services in the field of dentistry, dental equipment via wireless networks for display on mobile devices; Preparing audiovisual presentations for use in marketing; Providing purchase advisory and consulting services to consumers for the purchase of motorized vehicles, office furniture, cars