Quote:
Originally Posted by helloworld
slight paranoia... it seems to have come back  and ranking even higher. Sure did give me quite the scare though. 
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It called "Google Dance" Just type this term in any search engine and you will find millions of articles.
Your site can dissapear with some keywords for couple hours up to 1 day and after it comming back on the same positions +-.
It happened for unique website or for whole www (once in a month). Results can jump like crazy.