I'm trying to gather some data about sandbox effect. So if you have a site affected by it, could you post here saying how old is the site? Thanks in advance.
I have a couple of sites you may want to look at.
These sites get high ranking in Yahoo and MSN but do not do well on google.
We have a history of getting great rankings for our customers, but google has made it more of a challange for new sites.
The site that are in the "Sandbox" are in my sig line. The last PR update was the first time that the sites have had PR. They are around 90 days old.