The popularity of online auctions has grown over the past few years to new height, with hundreds of marketplaces now available, from general wide-open ones to very niche-specific ones. Early in the game eBay was the leader and today they still dominate the industry, as they generated $10.7 billion in revenue last year. Not too bad, right? They were the first to breakthrough and have built up a loyal following, but that doesn’t mean there isn’t room for new players to emerge and find success. I have been an avid eBayer (is that even a word?) since the beginning, so I am always checking out other options. I’ve noticed some…