Google is a large search engine that almost every body use it and that is because it is a multinational organization. YouTube is now handled by Google and it is the most used video hosting site around world wide. YouTube easy to upload and easy to use, and if you have enough followers then its easy to earn in there. Google Adwords, is the other earning tool in google. You really can not earn without it, and all you need is simply, type some words that your post is based on, and google will find you the most used words in search engine. Never forget these two things if you are a blogger:
YouTube
Google AdWords