<img src="http://tctechcrunch.files.wordpress.com/2010/05/mellonmerchantsmall.jpg">
<em><strong>Editor's note:</strong> Should media sites become group buying sites as well? Guest author Dave Chase
<img src="http://tctechcrunch.files.wordpress.com/2010/03/mynines.png" class="shot2">Online private sales is a <a href="https://techcrunch.com/2009/10/31/the-rebirth-of-the-sample-sale/">growing busin