Niche sites going after eBay - WSJ.com

A host of Web start-ups are gaining traction based on the premise that they make it easier for people to buy and sell online than the company that invented the idea: eBay Inc.

Second Rotation Inc.'s Gazelle.com site, which offers people a set price to take used gadgets like iPods and laptops off their hands, last month more than doubled the number of products, to 18,000, that it took in compared with a year earlier...