Vivvo CMS 4.1 http://www.rbr.com/ ©2010 Spoonlabs d.o.o. http://www.rbr.com/files.php?file=rss_logo1_757997737.jpg http://www.rbr.com/ http://www.rbr.com/features/sales-marketing/25421.html SALES & MARKETING Mon, 28 Jun 2010 12:19:00 -0400 For as long as there have been program ratings, marketers have been concerned with how many viewers are watching their commercials. Do they leave the