[Shopping4Coupons]

I have experienced situations where I pushed a certain keyword exclusively for a new site and it was #1 for that keyword search then it was somehow banished days later. It sounds somewhat similar to your experience.

Here is what I think, I do not know if it is true or not and probably never will but here is my gut. The Google search engines are pretty automatic and some of us know how to "beat the system" I believe there is a human interaction of some kind on Google's part.

A sort of Google God or most likely hundreds or thousands of them help keep the playing field even in their eyes by changing what sites are ranked for what keywords . They look for sites that may have risen to the top of searches unnaturally or too quickly and push them back. Like I have said I have no proof of this but have experienced it more than once. The effect seems to time out in a few weeks or less. Once you are back you will stay back.

It is sort of like pushing the bully at school to the back of the line to wait his turn. If my hypothesis is correct you'll be back in a bit. The only other thing I can think of to not have this happen is to make sure you promote a few relative terms rather than just one and add backlinks more slowly so you will not get noticed as much.

Give me a shout when you're back on top so I can have more ammo for my theory.... and sorry for your loss, but I'm sure it is not permanent.