Personalize, if not humanize, your posts, adding (CSS) popups containings avatars next to mailto links, as well as next to any word. You can chose avatar images, or let Gravatar chose it for you.
For documentation and tips, please refer to the official plugin page for <a href="http://planetozh.com/blog/my-projects/wordpress-plugin-avatar-gravatar-popup/" title="Avatar Popup" rel="nofollow ugc">Avatar Popup</a>

Ozh' Avatar Popup

Add CSS popups next to mailto links or next to any word. Can be any custom image, and has gravatar support.

Have a blog where readers often ask the same questions ? Give the Auto Responder a try and save your support time !
For documentation and tips, please refer to the official plugin page for <a href="http://planetozh.com/blog/my-projects/wordpress-comment-faq-auto-responder/" title="FAQ Auto Responder" rel="nofollow ugc">FAQ Auto Responder</a>

Ozh' FAQ Auto Responder

Have a blog where readers often ask the same questions ? Give the Auto Responder a try and save support time!

Ozh' Avatar Popup vs Ozh' FAQ Auto Responder