hummingbird + Penguin 2.1 -Case 1
Okay, So SEO world went upside down in last couple of weeks. First Hummingbird and then Penguin 2.1. I was busy studying Hummingbird and before I could conclude something, Google gave us Penguin 2.1. According to Google, Hummingbird is a complete change of an Engine ( Algorithm) with some old parts still in it ( as those old parts were