I feel your pain, since February been penalized. Tried doing everything but the only positive results have been on Google's side, my earnings are shot. Reading Google support forums they have destroyed many, many small sites and that's even worst with today's economy.
I wonder if Panda is finally catching up to all other sites that used to be untouched?
Probably. Who knows. I think Mhansen said it best: don't expect any visitors from the new Google.