Westlake Village-based ValueClick Media, the ad targeting division of ValueClick, said today that it has opened up two new offices. The firm said it has opened up an office in Minneapolis, Minnesota, and Phoenix, Arizona. The firm said the move was made to serve clients and agencies in the two markets, with Minneapolis representing a $1 billion online advertising and $300M mobile marketing opportunity by the end of 2011. Phoenix is expected to reach $800M in online advertising spend this year, according to figures cited by ValueClick.