Yes, you can use AdSense for Monetization on  blog or website. The is the best way to making money via blog. It gives 68% of shares for each CPC . You can earn more by placing your Ads at the right place on your website or blog or website. If you are getting international traffic ( mainly from United States ) on your blog and have higher CPC then you will make as much money you can. $100 is a threshold of google adsense. AdSense is only made for monetizing the content on your blog or website. But you have to follow all Google AdSense policies and terms and condition for not getting  banned from Google AdSense account. keeping this in mind there are to many policies of Google adsense, first of all you have to pass all their conditions for approval of account. Now a days only Google adsense is preferable and most trusted way to monetize content online.