【正文】 y providing an online space for people to build free homepages and that provides basic munication and support tools for conducting different activities in the social network； networking：The creation or sponsoring of a social network service and any activity, such as blogging, done in a social network ； networks：Social networks whose primary objective is to facilitate business； world：A userdefined world in which people can interact, play, and do business. The most publicized virtual world is Second Life； economy：An economy that is based on digital technologies, including digital munication networks, puters, software, and other related information technologies。 primarily a B2B or G2B mechanism；25.“nameyourownprice” model：Auction model in which a wouldbe buyer specifies the price (and other terms) he or she is willing to pay to any willing and able seller. It is a C2B model that was pioneered by ； auction：An auction in which multiple buyers and their bidding prices are matched with multiple sellers and their asking prices, considering the quantities on both sides；：The exchange of goods and services； (electronic bartering)：Bartering conducted online, usually in a bartering exchange； exchange：A marketplace in which an intermediary arranges barter transactions；:A personal Web site that is open to the public to read and to interact with。also known as cyberbanking,birtual banking,online banking ,and home banking banks:have no physical location。 a pany submits its surplus to the exchange and receives points of credit, which can be used to buy the items that the pany needs from other exchange participantsdesktop purchasing:Direct purchasing from internal marketplaces without the approval of supervisors and without the intervention of a procurement departmentgroup purchasing:The aggregation of orders from several buyers into volume purchases so that better prices can be negotiatedconsortium trading exchange (CTE) :An exchange formed and operated by a group of major panies in an industry to provide industrywide transaction servicespartner relationship management (PRM) :Business strategy that focuses on providing prehensive quality service to business partnerssupply chain:The flow of materials, information, money, and services from raw material suppliers through factories and warehouses to the end customerssupply chain:A supply chain that is managed electronically, usually with Web technologiesprocurement:The process made up of a range of activities by which an organization obtains or gains access to the resources (materials, skills, capabilities, facilities) they require to undertake their core business activitiessupply chain management (SCM) :A plex process that requires the coordination of many activities so that the shipment of goods and services from supplier right through to customer is done efficiently and effectively for all parties concerned. SCM aims to minimize inventory levels, optimize production and increase throughput, decrease manufacturing time, optimize logistics and distribution, streamline order fulfillment, and overall reduce the costs associated with these activitiesesupply chain management (eSCM) :The collaborative use of technology to improve the operations of supply chain activities as well as the management of supply chainsbullwhip effect:Erratic shifts in order up and down supply chainsradio frequency identification (RFID) :Tags that can be attached to or embedded in objects, animals, or humans and use radio waves to municate with a reader for the purpose of uniquely identifying the object or transmitting data and/or storing information about the objectcorporate (enterprise) portal:A gateway for entering a corporate Web site, enabling munication, collaboration, and access to pany informationinformation portals:Portals that store data and enable users to navigate and query the datacollaborative portals:Portals that allow collaborationgroupware:Software products that support groups of people who share mon tasks or goals and collaborate on their acplishmentvirtual team:A group of employees using information and munications technologies to collaborate from different work basesvirtual meetings:Online meetings whose members are in different locations, even in different countriesgroup decision support system (GDSS) :An interactive puterbased system that facilitates the solution of semistructured and unstructured problems by a group of decision makers (G2C)：Egovernment category that includes all the interactions between a government and its citizens； (G2B)：Egovernment category that includes interactions between governments and businesses； (G2G)：Egovernment category that includes activities within government units and those between governments； (G2E)：Egovernment category that includes activities and services between government units and their employees； government (mgovernment)：The wireless implementation of egovernment mostly to citizens but also to business；：The online delivery of information for purposes of education, training, or knowledge management； learning：Formal education that takes place off campus, usually, but not always, through online resources； university：An online university from which students take classes from home or other offsite locations