"We're their eBay ( EBAY)," says HomeAway CEO Brian Sharples. "They created a marketplace that didn't exist because it couldn't exist, because the ability to cost-effectively find a buyer for a $12 item if you live in Kansas and a buyer lives in Boston was impossible. That's exactly the problem we're solving here." -- Reported by Jason Notte in Boston. Follow TheStreet.com on Twitter and become a fan on Facebook.