racer_x - 10:23 am on Sep 2, 2004 (gmt 0)

It seems strange that Google are doing this.

This is only a guess, but it might be a test by Google to see if they can bypass adblocking software by changing the text. Of course it wouldn't be hard for the adblocking software to pattern match all possible reptitions of 'o'. But they might just be testing to see how well it works before coming up with a better solution