In the arena of Search Marketing, there are two major operations in SEO – keyword research for on-page optimization and back linking for off-page optimization. After the algorithmic change in Google with Hammingbird (HB) edition, long tail keyword search is becoming very important in SEO. Because the semantic algorithm in HB is associated with the nature of searches with long tail keywords.
You might know while launching Google Hummingbird, Google started emphasizing on the mobile or smartphone devices, whereas search users would like to input long content to find the best result through Google search engine. Thus, long tail keywords became a big part of the reason to get the change in the Google algorithm accordingly. Which is why long tail keywords are very important in Keyword research.