According to RCR Wireless News, "yet another set" of mobile advertising guidelines will be released this week, as the dotMobi Advisory Group unveils a 44-page document for companies looking to target wireless users.

Unfortunately, it's going to prove mostly dead in the water, because unlike other efforts that look at the mobile market as a whole, MAG is concerned only with the .mobi sliver of the wireless world.

"While that's unlikely to appease critics-who claim a mobile-exclusive domain serves only to fragment the Web and confuse customers-it may help to serve as a beacon for publishers and advertisers looking to leverage the .mobi universe," according to the report.

Still, most big-name media sites have shunned .mobi, and are sticking to URLs such as mobile.time.com or m.cnn.com, to give two examples from even the same Time Warner stable.

Mobile ads attract new guidelines [RCR Wireless News]