Whitey - 7:53 am on Mar 12, 2008 (gmt 0)

this only seems to be affecting very large or very high traffic sites, and definitely not all of them

Interesting observation . What do you estimate to be high traffic ?

I noticed that 2 out of 5 of our branded sites have just started producing sitelinks, which are our higher traffic sites. So I'm wondering if these gimmicks are released at traffic or interest thresholds.