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.

Want a random quote plugin ? Want to change the old boring comment pages full of “Joe said” with something random like “Joe thought”, “Joe wrote” and “Joe replied” ?
Random Words is a WordPress Plugin allowing you to manage a number of lists with any items, and display random items from these lists. Everything is managed from within the Admin interface of your blog, in a very neat interface.
For documentation and tips, please refer to the official plugin page for <a href="http://planetozh.com/blog/my-projects/wordpress-plugin-random-words/" title="Random Words" rel="nofollow ugc">Random Words</a>

Ozh' Random Words

Create list of items and display random item. Random quotes, or replace "Joe said" with "Joe said/commented/wrote/thought"...

Ozh' Avatar Popup vs Ozh' Random Words