To keep it short, 2 KW 2 Sites. KW1 - Ranking 14 for weeks, suddenly drops to 200. Another version of that KW with 'S' . KWS still on same spot.(15) KW2 - Wont rank for its targe keyword anywhere. I make small changes and update the content, KW1 comes back to its original position for sometime and goes back. Whereas KW2 came to 7th spot, stayed for a day and then disappeared again. I can't understand what is happening here. Any suggestions? Ideas?