The Google Panda update had big consequences on some Internet marketers and they weren't good.
Pages that were in the top 3 positions on page 1 and getting plenty of clicks suddenly disappeared.
Well perhaps they didn't disappear but you had to work to find them on page 6 or 7 and that far back, they were no good to anyone.
The websites had been Google Panda slapped.
SEO techniques that used to work were suddenly penalised.
This Warrior Special Offer for Google Resurrection may help.
I haven't seen it and that isn't an affiliate link.
Fortunately the Panda change in the Google algorithm has been good for me and my traffic in the last few months has been at record high. (Please let it stay like that).