It's still early days but I think Google's move into the radio advertising business could revolutionize (or perhaps evolve) the way the industry does business. In a test project, Google is providing 20 AdWords customers with access to more than 730 stations, which run ads in more than 260 U.S. markets. The AdWords system is linked through Google's dMarc, division, which was acquired for as much as $1.13-billion earlier this year (it was Google's biggest deal before YouTube came along). According to CNet, the 20 selected customers will see a new “audio ads” tag when they log into the AdWords system, which allows them to bid on air spots and target their ads by geography, station type, listener demographics and time of day. Given that the radio business has operated in much the same way for decades, Google is trying to implement a huge new approach to selling advertising. It could be the wave of the future or it could fall flat on its face. Nevertheless, give Google credit for trying something that could potentially be extremely disruptive. As well, the beta test and Google's deal with BSkyB are more evidence of the company's strategic thrust into new markets beyond the online paid-search business.