From yesterday my 2 websites are not in top 1000 for any keyword. Previously for nearly 90 keywords my website and its sub pages are in top 1-5. I checked in my Google webmaster tool account, where i previously attached my website , but removed my website from January 2012. I found 2 warning messages on dtd 10 september and 12 september 2012. On those messages mentioned that they found unnatural link building and most probably buying backlinks, after remove of those backlinks, i can resubmit my website for reconsideration. so now what i can do? I need every bhw members suggestion and help on this matter. Yesterday is a very dangerous day for me, my website gone and my paypal account get limited.