COCOSA TEAMS WITH SUI: Cocosa, Bauer Media’s private sale Web site that launched in the U.K. in 2008, has some big plans in the pipeline — including a collaboration with Anna Sui. The American designer has created a 14-piece collection specifically for the site, which sells designer labels — such as Alexander McQueen, See by Chloé and Valentino — at discounted prices for a period of up to 72 hours. The new collection will go on sale in September. Cocosa also plans to launch a men’s version of the site for fall, and also has plans for an iPhone app. Kelly Kowal, marketing director and head of editorial at Cocosa, said the site has about 275,000 members and sales tripled in 2010. She added the site would also unveil a new design in August.