Some of the more interesting and important items for March 15th :

• Google sees mobile ad rates passing PC rates – SAN FRANCISCO (Reuters) – Google Inc said that it expects the rates that companies pay for search ads on mobile phones could surpass the rates of its existing PC-based ad business thanks to the growing popularity of powerful smartphones.
• Homebuilder sentiment index falls in March – Yahoo! Finance – The National Association of Home Builders said Monday its housing market index, which tracks industry confidence, slipped this month by two points to 15, back to its January level.
• China trims holdings of Treasury securities (AP) –
• Obama expected to appoint Yellen as Fed vice chair – washingtonpost.com – With the expected appointment of Janet Yellen to be vice chairman of the Federal Reserve, President Obama would be putting a close ally of Ben Bernanke and an economist who views supporting growth as the most immediate challenge ahead in the No. 2 spot at the central bank.
• Factbox: Examiner’s findings of claims against Lehman officers – (Reuters) – The report by a court-appointed examiner into the collapse of Lehman Brothers Holdings Inc (LEHMQ.PK), the largest bankruptcy in US history, was made public on Thursday.
• Americans’ net worth up for 3rd straight quarter – Yahoo! Finance – The Federal Reserve reported Thursday that household net worth rose 1.3 percent in the fourth quarter to $54.2 trillion. It marked the third straight quarter of gains. Net worth had risen by a stronger 4.5 percent in the second quarter of 2009 and by an even faster 5.5 percent in the third quarter.