Same persistent spammer, trying out different incoherent subdomains to get to the top of the SERPs.
What I now noticed is that the redirect to SEOEXP.INFO is now silent (i.e., doesn’t appear on the IE toolbar). When the link is clicked from Google results, it keeps the original page on the IE address bar (although it redirects to SEOEXP.INFO, and then subsequently redirects to a served out Advertisement page).
The key is to move your cursor on the “BACK” button label, after target page is displayed, and you will see reference to redirect page from SEOEXP.INFO.
This is extremely frustrating and unethical !!!