The common boogeyman for stories about indie record stores going out of business is big-box retailers like Wal-Mart and Target, being that those stores basically kill off any other kind of small store. But it turns out that notion probably isn't true: Big-box stores have shrunk the floor space devoted to music and aren't selling as many albums as they once did. The real killer, according to a story on Digital Music News? Online stores like iTunes and Amazon and others like it, the only places that have seen their market share go up in the last few years. So the next time you blame your Wal-Mart for closing your local shop, throw some stones at Amazon instead. To see more deets, go here.