genkisan

<ul>
<li>easily switch on and off through Admin Options</li>
<li>display message without editing theme files (above 1st post or through widget)</li>
<li>display different message to different roles/users</li>
</ul>
Demo: 
<a href="http://ericulous.com/2007/03/09/genki_announcement/" rel="nofollow ugc">Plugin Details & Demo</a>

Genki Announcement

EvenFly Team

asifsaho

Spokesperson is a simple plugin for public blogs or any kind of WordPress driven site which can be used to show spokesperson/contributors information in widget areas.
If you want to show your sites contributor information then this plugin for you. Its nice graphical user interface will help you to show thier avater, email address, position and twitter profile by a few clicks. From the widget page in wp-admin you can handle this. For detail information regarding installation please see the “Installation” tab.

SpokesPerson

This is a little widget plugin for showing your blogs contributors name, email address, twitter…

Genki Announcement vs SpokesPerson