Chinese signage network operator Digital Media Group

ChinaTechNews and 3G.co.uk note that Oak Investment Partners, Sierra Ventures, NIF SMBC Ventures and Gobi Partners have banded together to invest another $4.2M into Digital Media Group, one of China's largest digital network operators. DMG, which has been in business since 2003, provides updated train and emergency information and advertising to 13,000 flat panel displays in train and subway stations throughout China, reaching more than 28 million people per week. The network is expected to double in two years expanding to cities all around Asia.

Tags: Digital Media Group, DMG, digital signage, outdoor advertising, out-of-home advertising