Web_speed - 5:36 am on Jul 13, 2010 (gmt 0)
I've noticed the same on a number of referrals lately. only "google.com".
Yet another cheap Google anti SEO tactic i suspect...
The SEO industry is not good for Googl's special global AdWords tax master-plan.
So they started by eliminated long tail searches (how could that possibly benefit users) and now proceed to starving webmasters from extremely important SEO referral information.
And yes, they are Google referrals alright (these are not bots as far as i can see).