You wake up in the morning and the first thing you check is your Google Analytics and what you see shocks you. Your websites traffic has dropped significantly. What has happened, was your web-host down for the night. No, you see a drop the next day too and you realize that Google stopped sending you the traffic that it used to. Immediate reaction is to change something in your blog, maybe you remember something unusual that you did recently and you go and reverse it and it may or may not help.
This happens a lot to people that they suddenly lose their rankings and I wanted to share a list of reasons that might have caused that.