The Mobile Marketing Association has released mobile advertising guidelines aimed at providing a global ad framework for the wireless industry, MediaPost reports:

The MMA said the new guidelines "would provide improved formats for mobile Web advertising and add new rules and restrictions for messaging, including SMS (short message service) and MMS (multimedia messaging service) and downloads. They will also include recommended aspect ratios and banner dimensions, maximum file sizes, file formats and other technical specs."

Last year, the MMA had released guidelines that only applied to separate specific markets, such as North America, Europe, and the Asia-Pacific region. And splinter groups such as dotMobi had also released their own guidelines for the failed .mobi domain.