Some very strange stuff going on – even SEO expert Dave Naylor hasn’t quite got to the bottom of it.
It seems some spammers/hackers are managing to redirect people from legit sites to dodgy online shops selling Windows 7.
Jobsite especially seem to have fallen victim to this attack.
See http://www.davidnaylor.co.uk/buy-windows-7.html and http://www.davidnaylor.co.uk/buy-windows-7-state-of-the-index.html
A bit scary. Looking forward to finding out what has happened here — could be very powerful in the wrong hands and totally screw up the search engine indices for everyone.