Ebay's mobile Craigslist competitor Close5 has quietly grown to 7 million downloads

 In the U.S., the online classifieds space has been dominated for years by Craigslist, despite its failure to adapt to newer technologies, including mobile. That has left room for newcomers to angle their way into the market, including big companies like Facebook, with its local selling groups, as well as smaller startups, like top-ranked shopping apps OfferUp and letgo. Ebay has also…