The Internet's top 22 retail Web sites earned at least $US100 million each last year, with at least one of them, Dell Computer, taking in close to $2 billion, according to a report from ActivMedia Research in the US.
Other big earners on the list included Amazon.com, Cyberbian Outpost, Ticket-master, Egghead.com, Gateway and Disney. com. The company added that exact revenue figures for the firms were unavailable.
ActivMedia, which tracked the Internet's top 100 US electronic commerce sites, said that on average, the top 50 sites saw revenue above $50 million last year, the lowest earning $12 million. The research company said the top 100 sites varied widely, covering industries including books, stocks, travel, computers, auctions and entertainment.
The report said all of the top 100 firms did one thing in common, though: "They tend to stick to their niches and often use multiple Web sites to address the needs of various markets, thereby personalising information."