Baltimore's Millennial Media files for IPO

Baltimore's Millennial Media Inc., one of the dominant companies in the rapidly growing field of mobile advertising, plans to raise $75 million in a public stock offering — money it will use to expand its operations overseas and go head-to-head against Google and Apple, according to a securities filing Thursday.

By Gus G. Sentementes and Steve Kilar, The Baltimore Sun

January 5, 2012