Advertising services; marketing services; rental of advertising space; Organization, operation and supervision of customer loyalty schemes; Business information services in the travel, transportation, aviation, tourism, and hospitality industries; Business consulting services in the travel, transportation, aviation, tourism, and hospitality industries; Business management services in the travel, transportation, aviation, tourism, and hospitality industries; Customer relationship management services; Management of telephone call centers for third parties; Order management services; Invoicing services; Invoice management services; Accounting services; Staff placement, staff management and staff utilization planning services; Preparing and administrating work schedules; Administration of staff incentive schemes; Travel itinerary management; Travel expense management; Providing cost calculation, cost comparison, cost tracking, cost analysis and cost optimization services; Providing price comparison services; Pricing services; Providing office functions; Organization, administration, maintenance and searching of data in databases in the travel, transportation, aviation, tourism, and hospitality industries; Providing computerized office management in the travel field for others; Providing business management services in the travel field for others; Compilation and provision of trade and business price and statistical information in the travel field for others; Business information management, namely, business information retrieval in the travel field for others; Electronic collection, processing and provision of business data and images in the nature of business charts and graphs in the travel, transportation, aviation, tourism, and hospitality industries; Electronic on-line information services, namely, the provision of advertisements and business information in respect of travel, tourism, transport, and entertainment through a computer database; Advertising services and promotion services by data communications for hotels, hoteliers, airlines, cruise lines, car rental companies and service providers in the travel industry; On-line direct electronic marketing services and advertising services for hotels, hoteliers, airlines, cruise lines, car rental companies and service providers in the travel industry, for others; providing an online computer database in the field of rating hotel accommodations; Providing information and advice regarding all the aforementioned services; all aforementioned services also rendered via global computer networks; Business management services, namely, aircraft flight management for others; Industrial management consultation including cost/yield analyses in the travel, transportation, aviation, tourism and hospitality industries