The plugin wp-delete-duplicate-posts puts beatdiabetes.us link in the footer

Facebook Fan Box Widget
https://www.ads-software.com/extend/plugins/wp-facebook-fan-box-widget-easy/
seems to do the same.

I too suddenly found the ‘Beat Diabetes’ links sitting at the very bottom of the footer. Tried using Firebug in Firefox – but it couldn’t see it either…

Ended up downloading via ftp, each plugin folder, and searching the contents of each one. Finally found the code…

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Category and RSS widget menu

A simple WordPress plugin to add category and RSS menu into your posts, pages, sidebars.
Version v1.1 | By Vas Pro | Visit plugin site

In this file (category-rss.php), starting on line 393 – it contains the following:

add_action(‘wp_footer’, ‘catego’);
function catego(){
echo ‘<style type=”text/css”>.hello </style>’;
echo ‘   <small class=”hello”>Beat diabetes</small>’;
echo ‘   <small class=”hello”>Diabetes diet</small>’;
}

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I deactivated the plugin, and the offending links disappeared.