Japan and South Korea Leading in Mobile Advertising with Newly Developed Methods, Says ABI Research:
Globally, mobile marketing has been regarded as a new way to monetize services and develop new sources of revenue for mobile operators. Japanese and South Korean operators are building on existing technologies and consumer preferences to pioneer this new medium. By 2012, the total value of all mobile advertising and marketing will reach $1.2 billion and $684 million in the two countries respectively. With closely-targeted marketing using demographic data from existing mobile subscribers, mobile ads over phones are effective in reaching consumers who are open to receiving commercial messages.
From Internet Marketing and Online Annonsering