My site was penalized in 2008, i could never properly understand why i got penalised, however, i kept on adding unique content thinking it shall come out some day, but it never did. Infact 99% of my long tail keywords were dropped but my main keyword stood at number one spot and couple of long tail keywords.
Late last year i started to investigate the issue and also posted a thread in forum, in which i was pointed at some issues which i fixed, i further discussed it with some guys and brought a lot of changes into site and last week i filed a reconsideration request. Today i got the response that now site has been reviewed.
I instantly went to check ranking for my long tail keywords, now some of the keywords with fresh meta titles are back in serps, usually first page or second but majority of keywords are still no where to be found (i checked the cache of those pages and they all show old metas). I was wondering if site comes back in steps or its almost instant, just like turning on light?