muraii

This plugin does the same thing as the the_author tag, displays the author name, however this one is linked to a hidden div(layer). Once you click on the author name the hidden div will show up together with the author details (taken from author profile page) plus the gravatar photo if the author has one, as well as a link to the author’s BuddyPress profile. If not, the default gravatar photo would be used.
This is a refinement of Igor Penjivrag’s Author Exposed plugin, released in 2008. See http://colorlightstudio.com/2008/03/14/wordpress-plugin-author-exposed/ for that plugin.
This plugin was developed specifically for use with WordPress MU and BuddyPress. It will work with WordPress, but the author link (my main point of interest) won’t be operable. That may change in a future version/adaptation of the plugin.
<ul>
<li>Comes with separate css file for easier modification.</li>
</ul>

BuddyPress Author Exposed

This plugin does the same thing as the the_author tag, displays the author name, however this one is linked to a hidden div(layer).

Carlos Longarela

<ul>
<li>Note: this plugin is no longer maintained to add new options because WordPress offers a similar option in Tools -> Site health 
About the tools available in this plugin, you have updated and new tools in a browser extension of this author (Best WordPress Tools) available for all browsers.</li>
</ul>
WordPress plugin that show us information about WordPress install, PHP, Database and Hosting Server and also minimum requisites and recommendations for PHP and Database versions.

CL WP Info

Fantástico plugin para conocer todo sobre tu instalación de WordPress y tu servidor. Imprescindible en muchas ocasiones.

No es un plugin para tener siempre activo, pero sí para tenerlo siempre instalado y revisar la información cada poco tiempo, antes de actualizaciones, para comprobar requisitos, estado de la memoria del servidor y mucho más.

Imprescindible

Show us information about WordPress install, PHP, Database and Hosting Server

BuddyPress Author Exposed vs CL WP Info