Penalization? Why?

Hi everyone,

Something really terrible happened to my site and I don't know what to think about it.

My website http://www.mixpills.com was for year and half on 2nd or 3rd position on Google listings for keyword "Viagra". Yesterday it suddenly dropped out and I can't find it anywhere. The allinurl: command also shows nothing, just only 2 of link subpages of this site. I think it was somehow penalized but don't know why. I didn't make any changes in near past, so I don't think it was because internal optimization. Could someone take a look at it and help me?

Something really interesting is that when I tried keyword "mixpills" I found two websites that totally copied my website and gave it to another domain name. Could this be the reason for penalizing? Is this so simple to kick out your competitors - just copy their site and make them penalized?

Is any chance to resubmit my site or get an answer from Google why they did this?

Can someone help me?

I dont think you're banned. Click the
"repeat the search with the omitted results included."
link and you'll see all of your pages in there...

Your pr is all still there too. Id let it ride out for a couple of days to see what happens.

penalization...no.
filtered out...perhaps.
google hiccup....perhaps.