Allen Snook

A WordPress plugin that gives users control over whether or not to opt-in to Gravatar. Avoids revealing Gravatars to logged-out visitors.

Profile Picture Privacy Controls

A WordPress plugin that gives users control over whether or not to opt-in to Gravatar. Avoids revealing Gravatars to logged-out visitors.

Matteo Manna

This plugin simplifies the life of WordPress users. 
Now users can add or remove their avatar simply using images from his Media Library. Simple to use, no additional functions required. Plugin available on <a href="https://github.com/MatteoManna/Simple-User-Avatar" rel="nofollow ugc">GitHub</a>.

Simple User Avatar

Great

This is just what I needed! Did never like the tie to Gravatar. And the little donation reminder doesn't bother me at all. :)
Kudos!

Great Little Plugin - Clean Code

Simple User Avatar helps users to add or remove their avatar using images from his Media Library.

Profile Picture Privacy Controls vs Simple User Avatar