Roy de Souza, the chief executive of both Zebo and Zedo, said the site, which ended its testing phase in September, is focused on helping users shop together rather than helping individuals manage items they own, as its competitors do.
“The concept is that people will list things they own, discuss them with friends and help others decide what to buy,” he said.
So far, Mr. de Souza said, the site has not earned a profit, mainly because it has not yet built systems to capitalize on its users’ consumerism. Zebo will in the coming months include more ways for retailers
