Qdos to exhibit at Online Retailer - Sydney September 26-29 2011 the e-retailing industry's premier learning event of the year. Online Retailer is a four-day blizzard of new ideas, problem-solving solutions, career networking, cost-saving resources and quality learning. It's the most comprehensive curriculum on online and multichannel retailing in Asia Pacific, and it's one of the world's largest e-commerce and digital marketing events for retailers.