QUOTE(Jenny Pretty @ Apr 14 2013, 05:01 PM)
After Google Panda updated on 2012, My dating site rankings dropped more than 50%. I tried many ways both online and offline improvements but my dating sites could not get back the amount of traffic or keywords rankings as the way there were before.
I think if Google placed one site on their blacklist, then there is no way to get it back.
My question is, should I create a new domain for each site?
IMO, no. A friend of mine also was affected by the Google update so what they did and are still doing are checking all their backlinks from the previous years and removed all the spammy links and retain the good links. Also, they are now more into SMO like creating blogs, providing info about the products that they have. They are gaining back their authority and ranking slowly now.