An avatar is an image that usually identifies a nick within a community. It is a way to enrich your profile with a nice picture that identifies you. Some of the authors of some blogs prefer to put their picture on their profile, but if you want to remain anonymous, you can easily create one from one of the many sites in the network. For example, I use a site called Avatar Maker. It is a cute site that allows you to create Avatars, without registration. I also made an explanatory video.
Once you have your avatar ready in the backend, choose "Profile" and go to the bottom part of the page. Will be displayed in the account Management section, to the right of the word Avatar is a button with the word select, or select statement. Then choose upload your own avatar is normally in the media archive. After you select this image and click on insert or insert.
Our site has no link to the avatar maker, but we appreciated the simplicity and usability of this tool. The avatars are really fabulous, the system for generating them is really simple and well done. The combinations of avatars, or caricatures really are many.