Mobile social network mig33 announced today it has received $13.5 million in a second round of funding led by Menlo Park-based VC firm DCM. First round investors Accel Partners, Redpoint Ventures and TVP also participated in the round. The two-year old company, originally from Australia and now based in Burlingame, CA, says it will use the funding to continue expanding the company both in the US and around the world. Its service lets users chat and send instant messages and emails, make VoIP calls, and share photos on a platform that works across mobile operators. It says it currently counts 9 million users in over 200 countries, who rack up 2 million sessions per day sending more than 45 million messages in that time. They also share one million photos a month.