Panda, Penguin, Hummingbird, Pigeon are among the most popular Google updates on the internet with Penguin 4.0 being the latest one among the versions rolled out. There have been some other technical updates too which, together with the previous ones, have changed the way internet search results work. Let us find out more about them in this infographic.
You can also read this blog -
Penguin 4.0 - Effects, Benefits & How To Be Safe From The Penalty
And check out this presentation on Penguin 4.0 update -
Why PPC is important for SEO and Conversion?