Forum Moderators: open
I know that recently our very good quality website was knocked out and what comes up today for queries we used to be in the top few is ... largely drek. Someone is getting the traffic we used to, and I am guessing they are as happy as we are sad :(
This is not to say your site is not great, just to point out that recent changes within Google have certainly changed the balance of power for some sites -- perhaps you were a winner. If so, congrats!