How to add Meta tags to Blogger Posts

For this to happen, you have to add some pieces of codes to the template.
First Sign in to Blogger dashboard » Layout » Edit html
and find this line

<b:include data='blog' name='all-head-content'/>

and add this code just below that line

<b:if cond='data:blog.url == "here enter your adresse (ex: http://toearnfromnet.blogspot.com'''>
<meta content='DESCRIPTION' name='description'/>
<meta content='KEYWORDS' name='keywords'/> </b:if>

We now added meta tags to the homepage. Next, you want to add meta description for another
post, for example : http://toearnfromnet.blogspot.com/2012/03/make-money-with-youtube.html
Now, what you have to do is pasting the above three lines below the present code and
changing the link,description and keywords.
So, the final code now looks something like

<b:include data='blog' name='all-head-content'/>
<b:if cond='data:blog.url == "here enter your adresse (ex: http://toearnfromnet.blogspot.com"'>
<meta content='DESCRIPTION' name='description'/>
<meta content='KEYWORDS' name='keywords'/> </b:if>
<b:if cond='data:blog.url ==
"http://toearnfromnet.blogspot.com/2012/03/make-money-with-youtube.html"'>
<meta content='Make Money With Youtube' name='description'/>
<meta content='Make Money, Earn Money, Youtube,' name='keywords'/>
</b:if>

Just like the above procedure, you can add different meta tags to as many blog posts as you
can.
Try it out and share your experiences!