SAN FRANCISCO: Microsoft will close its web display advertising business, handing operations over to AOL Inc and AppNexus Inc and cutting about 1,200 jobs, Bloomberg reported.
NEW YORK/BOSTON: A growing number of U.S. companies, including MillerCoors and AIG, are stepping up the battle against online ad fraud by demanding proof that their ads have been seen by real people instead of computers hijacked by cybercriminals.