If you don’t know how to show your image on blogs comment or blog network then this post is for 
you.
Many times you have found that there is an image of blog commenter on many blogs called Avatar. Probably you may also want to show your image on blog comments. Adding your image to blog comment is very easy and you don’t have to manually add you image every time you make a comment. It’s easy and simple to do so you just need to associate your image with your mail id.
Blog owner use a program on their blog to fetch images of blog commenter. That program fetches images from various sources and by adding your image to those sources you can also show you image on blog comments.
There are various sites which allow you to become member to their site and add your image. Some of the sites are:
Gravatar
MyBlogLog – Yahoo! Service
Openvatar
Google Friend Connect
First you have to register to those sites with your email id and you can add your image to that site. After adding image whenever you make a comment on any blog your image will be dispelled with your comment.
But you have to make sure that you have filled same email id on comment form which you have used in registering on those site which will display your image.
If any buddy has problem of avatar’s CSS. Please see this trick. It is good CSS coded and problem solve to all. Arrange your Comments Avatar with CSS in blogger
Thanks!
Avatar – are we talking about the movie here?
this is very helpful article