incrediBILL - 6:54 am on Aug 24, 2010 (gmt 0)
I can confirm this with a specific search displays from my domain displays EIGHT (8), that's right EIGHT (8), results from my domain alone.
Compare that just to a search in Google for the domain "WEBMASTERWORLD" which returns 6 from the domains webmasterworld, 2 from pubcon, then some various stuff.
Another search on another of my domains, with 5 popular subdirectories looks like this:
We're talking each results a full SERP with dir1-dir5 nested under the primary domain.
Best of all, the traffic leech domain sites, such as Aboutus.org, seem to have been pushed down in the SERPS so they aren't right under your domain anymore.
Ahhh.... gotta love it :)