I am going to write this topic in couple of blogs. So that reader will get complete exposure of oracle services providers, like Oraclize in particular. In my first blog post I will try to give a brief overview of Oracle services. Basically dealing with questions like, What are Oracles? What is Oraclize? What is the use of such services? Etc. In the subsequent blog, we will try to use the Oraclize service with our smart contract and further we will take a deeper look into, how it works under the hood?