As an example of this branching out, the newest of the sites in this network is My Fashion HQ. This site features a variety of subcategories of items, including accessories, handbags, scarves, and watches. The front page of the site showcases "last chance ending soon" items; when I clicked over to the site, there was a pair of opal earrings available for a bid of $2. I think there are some good deals to be had on this site as a buyer, and I think that over time, more and more buyers will want to sell here.
The Treasure Auctions Network has a system for approving verified sellers. It can take months before a seller is approved even as an interim seller, and the network's owners promise a safe and trustworthy online shopping experience because of their verified seller approval process.
I'm intrigued by the idea of specialty auction sites both as a buyer and a seller. You get a more focused shopping experience. Sometimes when I shop, I want a little of everything, but more often than not, I'm looking for something very specific. Sites like My Fashion HQ are a nice way to get more specific as a buyer--and as a seller, it's another opportunity to work on specializing in a particular niche.