<A target="_blank" href="http://www.usatoday.com/money/industries/technology/2010-12-14-yahoo-layoffs_N.htm?csp=34tech&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+usatoday-TechTopStories+%28Tech+-+Top+Stories%29">CEO Carol Bartz has promised to increase Yahoo's profit margins by 2013</A> but, so far, doesn't seem to be making much progress. So. To increase margins, at least temporarily, four percent of the staff is being let go.