About Global Hotel Alliance 
Based on the airline alliance model, Global Hotel Alliance is the world largest alliance of independent hotel brands. It uses a common technology platform to drive incremental revenues and create cost savings for its members, while offering enhanced recognition and service to customers across all brands. GHA currently encompasses 180 upscale and luxury hotels with over 46,000 rooms in 42 different countries.
http://www.gha.com
About Hotel Technology Next Generation
Hotel Technology Next Generation is a global trade association that fosters, through collaboration and partnership among hoteliers and technology providers, the development of next-generation solutions that will enable them to do business globally in the 21st century.
http://www.htng.org
About hotelmanagement-network.com
Hotelmanagement-network.com offers insight into the competitive world of high-end hotels, providing managers, designers and other management staff with news, views and trends on the latest project developments and market movements.
http://www.hotelmanagement-network.com/contractors/hospitality-software/micros-systems/
About RSPA
RSPA stands for Retail Solutions Providers Association. RSPA is the only association dedicated to the retail technology industry. Its members include resellers, distributors, hardware manufacturers, software developers, consultants and service providers who bring retail technology solutions to the marketplace.
http://www.gorspa.org/