patc - 11:57 pm on Jul 27, 2013 (gmt 0)
Just to add my two-penneth. Seeing the same huge flux from Friday. One site has been top 3 for a key term since 2005. Knocked almost completely off the face of the Earth. Another site ranked well until 1st Penguin and Friday was its complete death knell.
So, just about clinging on in here, scratching my head. Oh I love how weekends can become a huge stress!