Selling ads is one thing; finding advertisers is another. To get advertisers to sponsor your blog, you have to set a fair price and have great content, but you should also definitely consider ad placement. After all, advertisers buy your spots to get clicks for their websites and sales for their products, so you have to sell spots where they’ll get what they’ve paid for, otherwise they won’t continue advertising on your blog.
In this article, I’ll show you different ad placements and discuss their pros and cons.
Sidebar
The sidebar has always been a popular place to display ads on a blog. The advantage of sidebar ads is that people notice them when they land on your website. The disadvantage is that many people are so used to seeing ads there that they tune them out.
Best ad size : the sidebar is definitely the best place to display 125×125 pixel squares. 250×250 and 300×250 pixel spots are also very popular. 125×125 spots are usually a must, though, because almost all advertisers already have ads in this format.
Header
Depending on your blog’s design, the header might be a good place to display advertising. This location is usually considered premium placement and is one of the more expensive spots on a blog.

Best ad size : 728×90 or 468×60 is probably best. Of course, depending on your header’s design, you may want a custom size, but many advertisers already have 728×90 and 468×60 ads ready for publishing.
Above Content
As you know, on blogs content is king. And where better for advertisers to put their ads than just above the content? The location is becoming popular: it sells quickly, and advertisers stay in that spot longer than in any other. If your design allows for it, this spot is a must to attract advertisers and earn revenue.

Best ad size : I’ve always used 468×60 and gotten good results from it. Although I have seen websites display custom sizes here, which would work as well.
In-Post Below Title
This is the spot on your site that will generate the highest click-through rate. It doesn’t look great, since it’s breaking up your post, but it performs very well for advertisers. If your site receives a lot of search engine traffic on older posts, it is common to display a 300×250 ad or similar in this placement. Certainly, if you have an ad above the content, you might not want to also have this ad below the post title.

Best ad size: 300×250 will generate the best results.
Below Content
Another great location is below the content. The reason is simple: what do users do after having finished reading a post? If an interesting advertisement is displayed, chances are they’ll click on it and visit your sponsor. The disadvantage, though, is that ads in these spots get fewer views than those displayed above the content.

Best ad size : For this location, 468×60 pixel ads seem best. Another option is to display a custom-sized ad tailored to your content’s width.
Beside Related Posts
To maximize page views and retain visitors, most bloggers display related posts at the end of each article.
Ads displayed beside such lists generally receive a lot of clicks because visitors have finished reading your post and are looking for something new. This spot on my blog WpRecipes has been taken by the same advertiser for three months now, so he must be happy with it.

Best ad size : This is the perfect place to display a big square, such as a 250×250 or 300×250 pixel ad. A series of 125×125 spots might also work for high-traffic websites.
Conclusion
So, where is the best place to display ads on your blog? Well, there are many “best” places. Finding the ones that work for your website can be tricky, which is why you should experiment with the suggestions mentioned here. As we all know, our visitors will criticize us for each ad zone we place on our sites. It is important to select your ad locations wisely by making sure that they flow with your content and are not too overbearing for your visitors. I hope this article has given you some ideas on how to monetize your website, and I wish you much success with your ad sales!
thanks once again for your nice post. my first ad slot sold in few hours after my site get approval @ 260*125 banner in the sidebar. and as you see the top banner is really good and expensive . you are right. the new guild lines determine the micro bar and mini bar will be also popular in 2010, but i never seen that type of slot in any blog, even i had an idea to put the ads in micro bar 88*31px size below the post. -=-=-= will it works, as a new blogger like to know. 250*250 seen in many blogs even in the affialte banners are in the same size, but for my theme its 260 width sidbar. so will it work.
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last doubt : the 16*16px ad slot will it give more exposure or impression can we buy it or make a slot for that.
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thanks to my first sponsors ;) .
I think, best place is SIDEBAR and HEADER.
I don’t like: Above Content, In-Post Below Title, Below Content… because get to many accidental clicks which not serve to advertisers.
It do not serve advertisers, bu as BSA ads spots are paid by month and not by click, it don’t penalize them neither.
Because they paid by month this means that advertisers first need quality visitors = quality clicks.
Anyway this is my opinion… congratulation for your post :)
@sriganesh : The slots described above are good in my opinion, but that doesn’t mean that any other aren’t.
each blog is unique, so it is important to test new placements and see what works the best for you.
Good luck in selling your BSA ad spots!
thanks for the Reply jean, ill try to experiments
Great post!!
We have Header, Sidebar, Before Content and After Content ads on our blog…
According to the suggestions you’ve made we are now trying to offer popular ad formats so that advertisers find it easy to upload their banners.
Another possible placement could be the footer. We use footer for Google ads (728×90) though.
Great tips guys!
You should really sign-up for the free $25 bonus at Saturn. I just made a deposit!
This is very informative. I had not thought about placing an ad in the inset position but I will give it a try – plus some of the other tips.
Thanks!