Several of us are being hit by over 10,000 backlinks all setup on domains registered in May. An attempt at bowling. I suggest everyone performs a search for their domain name with no spaces or the TLD at the end and see if you are also being affected.
I have posted a query in Matt’s Cutts blog which I am hoping he will answer. It is the last comment – By Dave and concerns Google Bowling.
xxxhttp://www.mattcutts.com/blog/vacating/