Time Warner Inc. (NYSE: TWX) has some good news still cranking out of its AOL unit. comScore has just released its new Internet "Top 50" lists today, and in August, Advertising.com remained atop the Ad Focus Ranking. comScore said that Advertising.com is reaching 89% of the more than 181 million Americans online.

If you just run some simple math, this would generate a total audience reach of roughly 161 million Americans. Obviously an audience reach is not the same ranking for search or time spent per visit on a website, but the number is more than substantial.

If AOL is or is not going to end up being its own unit or a tracking stock, this advertising.com is a major help. If you will recall, the parent just rolled out the Platform A that integrates all the online ad properties and builds upon the Advertising.com business. That should help extend the reach even more, although you have to wonder if any changes may cause a skipped beat here and there. Obviously AOL wants to increase the depth of this reach now. Even a slight incremental increase in "per user" metrics can have a major impact with numbers this large.

Jon C. Ogg is a partner in 24/7 Wall St.; he does not own securities in the companies he covers.