Chris Taylor

Personal welcome is a WordPress/MultiSite/BuddyPress plugin that lists newly registered users, and allows site administrators to send them a personalised welcome message. The welcome messages are based on templates which you can write yourself (as many templates as you like). Once a message is sent that user won’t appear again.
There are four extra management features:
<ul>
<li>The ability to set all users as having been sent a welcome message (an easy way to bulk remove everyone from the list, for example when the plugin is first installed)</li>
<li>The ability to search for a user and send them a welcome message</li>
<li>The ability to set the new user as being spam</li>
<li>The ability to set the new user and all their blogs as spam</li>
</ul>
Of course, the templates don’t have to be just for welcoming people – they could contain FAQs, help information or anything else.
The plugin also makes use of the __() function to allow for easy translation.

Personal Welcome

Personal Welcome is a Wordpress plugin that allows site administrators to create and send personalised welcome messages to new users.

Contempo Creative Inc.

An awesome social plugin, featuring all of the most popular social sites (31 to be exact). Choose from 16, 24 & 32px icons, all beautifully designed and pixel perfect.

CT Social

An awesome social plugin, featuring all of the most popular social sites.

Personal Welcome vs CT Social