Gregg

This plugin allows you to change the footer text on the bottom left of the admin page.
Once activated, navigate to the Settings -> nuAdmin Footer and change the Footer text/HTML. You can use html to link to your website, your help desk, your email or anything you would like. If you find the plugin to be useful and would like to donate, you can do so in the Settings.
Here’s a link to <a href="http://www.tripleginteractive.com/blog/wordpress/custom-admin-footer/" title="free wordpress plugin: custom admin footer" rel="nofollow ugc">the blog post on this topic</a> for more information. Future version’s will have much more capabilities.

nuAdmin Footer

This plugin allows you to change the footer text on the bottom left of the admin page.

This plugin is for adding certain text to every post, before or after.
<ul>
<li>Example : You can add a copyright notice to each post, or licensce information</li>
</ul>
For Example and Details Visit : <a href="http://www.jjtcomputing.co.uk/" title="Examples and Details" rel="nofollow ugc">http://www.jjtcomputing.co.uk/</a>
My Technical Blog is : <a href="http://www.jjtcomputing.co.uk/blog/" title="My Technical Blog" rel="nofollow ugc">http://www.jjtcomputing.co.uk/blog</a> 
If you have any queires / complaints regarding this plugin, please feel free to mail me at webmaster@jjtcomputing.co.uk. Thank you.
See my blog for updates <a href="http://www.jjtcomputing.co.uk/blog/" title="Blog" rel="nofollow ugc">http://www.jjtcomputing.co.uk/blog/</a> .
For general support, please consider posting on <a href="http://www.jjtforum.co.cc/" title="JJT Forum" rel="nofollow ugc">http://www.jjtforum.co.cc/</a>, so everyone can benefit from your answer.

Custom Post Text

This plugin is for adding certain text to every post, before or after.

nuAdmin Footer vs Custom Post Text