mdiamondstone

authorGrid is a sidebar widget that displays the avatar of any author on your blog with at least one published post in grid form. You 
can set how large the avatar should be, how many columns (or rows) you’d like in the grid, and the display title of the widget.

Author Grid

Sidebar widget that displays the avatar of all of the authors on your blog in grid form.

Because you’ve found the way to this page, I assume that you may have already noticed that there are currently no good plugins available than can be used to change your user’s avatars right in the backend.
What makes visage special?
<ul>
<li>Change your avatar without signing up for gravatar</li>
<li>Add a custom PG rating to your avatar</li>
<li>No unnecessary clutter within the interface</li>
<li>Available for all user roles</li>
</ul>
This is where visage comes in. You just need to let WordPress install the plugin and you’re ready! No setup, no more configuration.
Once the plugin is active, you are already able to set your own avatar on your profile-page in the backend of WordPress (of course you can also manage the avatars of other users right on their own profile-pages).
Bugs: Should you come across some errors or bugs in the course of use, just leave a <a href="/support/view/plugin-reviews/visage" rel="nofollow ugc">review</a> for me. Afterwards I will put my focus on fixing those as soon as possible.

Visage

Allow users to set their own avatars easily.

Author Grid vs Visage