I am new to blogging and trying to earn more from adsense CPC. here is what i am going to do. Suppose i have two websites one is of multi niche(CARS) and other is of micro niche(BMW any series). And i have posted an article with same keyword focusing but with different content. The suggested bid of that keyword is 10$ and did some SEO to maintain on 2nd page till now. So, My question is that with that same keyword used in 2 posts(slightly differ) in 2 websites. which one CPC will be higher and why? I also want to know how to drive more traffic, right now i am using only social media and getting 1000 visitors per day. And i did seo by commenting on doo-followw blogs only and some edu blogs. is there any other way and how to do it. Any helping and suggestion comments are highly appreciated.