Massive drop in serps?

My site has gone from number 3 to close to the last page. I don't think I've been penalized, but I did add the keyword again into the description recently. Could that cause such a massive drop?

My main page is near the bottom, but there are several other of my pages closer to the top. eg http://mysite.com/site where as http://mysite.com is at the bottom.

It is strange perhaps your word is not competitive. Try to add another

I would bet it is the new Panda algorithm that got you. Check it out google updated yet again.. LOL I think it will normalize with some decent keyword research.. Best of Luck!!

How old is the domain? What do your outbound links look like? Linking to good people?

It looks like a dance.The fact your pages are high is a good sign,you'll settle somewhere,where is what googles trying to figure out right now.Give it a few days\couple of weeks.

If you made a bulk backlinking campaign it can just be a "Google Dance".

In case you haven't done any recent linkbuilding then look at the content of your page.

Cheers

It could be because of another update, could be just a little dance by the sexy Google

Keep backlinking, don't stop.

The worst thing you can ever do when your URL changes position, regardless of whether or not it's positive or negative, is stop backlinking.