Amazon.com May Be Losing Its Dot-Com Glitz  NEW YORK (Reuters) - Amazon.com Inc.'s &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=AMZN.O target=/stocks/quickinfo/fullquote"&gt;AMZN.O&lt;/A&gt; days as a  hot-shot dot-com may be behind it as the Internet retailer's  slowing growth makes its business suspiciously similar to that  of its brick-and-mortar peers.