I recently found quite a lot (nearly 10,000 pages)of duplicate content on our site which we have now ether removed or asked Google not to index using the no follow Tag. The only thing is we haven't moved in the serps we are still way back behind scraper sites. Does anyone know wither you should file a re-inclusion request. Or just sit tight and wait.
we also have some duplicate content problem... a month ago we moved our site to a new IP. G continued crawling our site with no problem, but meanwhile it also started to index our site without the domain, just the IP, like: www.mydomain.com/urlpart1/urlpart2.html 255.255.255.255/urlpart1/urlpart2.html
We have no idea how G picked up the URLs in this format (there were no links to pages with this kind of URLs).
The problem is that some pages with URLs containing the IP are ranking better than the "real" page. And of course it may harm the value of the real page as well.
We made a server side 301 redirect to the real pages but the G's index still contains around 3000 pages with the IP (together with the real pages). It seems that G did not crawled these IP-URL pages after the redirect has been set, but they are still in the index.