Hi. My blog had PageRank3 after 31 of December. But during 1 month it dropped to ''0''. Why can it be?
1) do you have the dup content? 2) do you bought the blog withe this pr and you cjange the content? 3) do you make links from your blog to bad sites?
I believe it is becuase you are selling link or write review for those paid to write review site such as payperpost
Either someone reported your site to google, you bought a dropped domain, or you deleted the contents that gave you pr 3.