1. Header [468x60 / 728x90]
The first place for AdSense Ad is in header. It is known as golden place because it will help us to make 50% of total earnings from this ad slot. The reason, the header of our blog is seen by everyone without scrolling down and visitors will also see the ad there. In the header, we can get high impressions and ad clicks because that is the most attractive place in the whole blog. The recommended ad sizes for headers are 468x60 and 728x90. Place any one of these size's banner here which should be suitable with your blog. As a demo, currently you can see the 728x90 ad banner in our header which will also help you to increase earnings. Also choose the text or display ad widely which will be depending on the background of your header.
2. Below Post Title [300x250 / 336x280]
After Header, we've another most used place of pro bloggers to display the second ad on our blog. So, this place is below the post title. This ad should only appear inside the post otherwise in the homepage, it will be looking ugly. If you check other blogs having AdSense Ads with high earning then you will notice this thing that there is always any kind of Ad below the post title in their blogs. As in the header place, here we also get high impressions and ad clicks because that ad will be near to the content and visitor comes to your blog for the content. So, it increases the chances of getting more clicks and increasing revenue. The ad size for this place depends on the theme or design of your blog but the recommended sizes are 300x250 and 336x280.
3. Between Content or Posts [468x60 / 300x250]
Adding the AdSense Ads between the content or posts of your blog is also most popular now as most of the pro bloggers are using this place. This place is also best for ads as visitors will surely see that because that will be shown between the content and your visitors needs content. Here we can also get good number of ad clicks as it will be seen by every reader. The recommended sizes for this are 468x60 and 300x250 but you should choose that size which should be appropriate with the location and theme. If you're providing text content then I recommend you to use Text type widget there that will help you to get more clicks. There is a plugin for WordPress which you can use to show ads between content but for Blogger, we've technical code by which can do that and it will shared here soon.
4. Sidebar [300x250 / 300x600]
Google AdSense allow us to place only three ads in a current page if you add more then they won't display there but if you've premium Adsense publisher account then we can display at least four ads in a single page and above three places are perfect if you're normal publisher. If you're a premium publisher and want to show four ads in your blog then Sidebar is perfect place for the fourth ad unit. There recommended sizes are 300x250 and 300x600 which will help you to gain more clicks. This one is also perfect for high impressions, views and clicks as well.
If these places are not available in your blog because of theme, template or design then read this guide. It is not important to place ads on the above given places but try to add ads on such places where you may get more clicks and find the reason why you'll get more clicks there. Try to use such area for ads which should be seen by every visitor without scrolling down and that is the reason Header is known as Gold area. Yeah! You can place ads with or between your content and that is best because people come at that area to get the content and you can take benefit from it. About the sizes, you should look for the appropriate sizes which may fit with the area. After all, If you still can't put ads on your blog on proper areas then you may be using such theme which is doesn't have better ad places. You can see the latest themes which are already having proper ad areas and you can change your theme and it mush have proper ad places.
What About Three Columns Blog?
Well, If you're using three column theme or template on your blog then you might be confused in adding ads on proper places then let me help you for this. In the three column blog, you can add the first ad in header, second below the post title, third between the posts and fourth in any sidebar. If you don't like this ad placement then we've also another idea for you. So, add your first ad unit in header, second in the left sidebar, third in the right sidebar and fourth below the posts/content.
What To Avoid?
Most of the beginners are in big hurry to be billionaire with their new AdSense account but it's not easy to earn high revenue with AdSense in only few days. It will take a lot of time to build your blog and traffic. Traffic is the most important that will help you to monetize your blog. So, try to concentrate on regular blogging and also doing proper SEO. So, in this kind of hurry, most of bloggers uses the pop up ads on their blogs which are not good for them. Yes, I know it will help you to generate more income but that is against the Google AdSense's terms and conditions. So, try to avoid using pop up ads [Specially AdSense] otherwise there is chance to get your account disabled.
These were some best areas and advanced guide by which you can improve your AdSense earning by displaying ads on proper places. I hope this guide is going to be helpful for everyone who is reading this article. If you've any suggestions, question, tip then feel free to leave a comment below and also share your views about this. Take a lot of care of you and your family.