Google Algorithms: Panda, Penguin and Hummingbird

It has been so long we've not talked about search engine optimization and the time arrives now. So, we're going to pick up the interesting topic - Google Algorithms : Panda, Penguin and Hummingbird. In the past, these were the terrible animals for people but now Google have made them terrible for webmasters. Every webmaster know them very well if you don't get them known before you get hit