Xstone - The platform for trading with stone provides, besides the market place, information about more than 5000 types of stone, news, and a forum. Natural Stone Network - Information, contact and marketing forum for the natural stone industry. Abraxas Verlag - Offers searchable database of descriptive, locale, and supplier related information for natural stone. Stone Information Center - Information center on stone suppliers from around the world, for architects, designers and construction professionals. The Stone Network - Portal resource directory for the natural stone trade, over 2,600 material listings, images, machinery producers, consumables, tools, trade associations, direct hyper links to all members websites. Stone World & Contemporary Stone Design Magazines - Source of information on stone use in architecture and interior design as well as stone production, distribution, installation, and maintenance.