Aswin Anand

With this plugin, assigning multiple categories to one or more posts is a 
breeze. Pop the plugin’s PHP file to your wordpress plugin directory, 
activate it and click on “Assign Categories” under the Manage menu. 
The page will show the list of available categories, followed by the 
available blog posts. You can select the categories, select the required 
posts and then click on “Assign Categories” at the bottom of the page. 
Now, all your posts will be assigned the new categories.
Plugin Page: <a href="http://www.aswinanand.com/2008/10/bulk-assign-categories-to-multiple-posts/" rel="nofollow ugc">http://www.aswinanand.com/2008/10/bulk-assign-categories-to-multiple-posts/</a>

Assign Categories

Assign one or more categories to multiple posts in a single shot, with or without preserving existing categories.

conlabz GmbH

Your wordpress website includes third party scripts and tools like website traffic analytics, ad banners counter by feedburner or some top lists. Google Tag Manager provides a comprehensive user interface to manage all these scripts (tags) and include them with a single plugin into your wordpress powered website.
This plugin includes both the javascript code to bring those tags into your site and the fall back iframe code to still provide functionality if javascript is disabled. Installation requires just two simple steps
<ol>
<li>Install the plugin.</li>
<li>Input the container ID in preferences</li>
</ol>
Instead of copy and pasting lots of script tags into you wordpress theme files or managing a couple of plugins for diverse services you can now serve this all from a single source – the Tag Manager. Tags are comfortably managed in the Google user interface, no need to further touch you wordpress installation.
Registration for Tag Manager (https://www.google.com/tagmanager/) is two simple steps before you receive the Container ID which is the only information the plugin requires to work properly. From now on, you have a couple of advantages:
<ul>
<li>a comprehensive overview of all tags you are using</li>
<li>tags can be deactivated in the Tag Manager</li>
<li>you can preview changes on your site before putting them live for your visitors</li>
<li>provide access to tags management for marketing staff – no code changes needed</li>
<li>use all the rules and macros to fine grained adjust tag usage</li>
</ul>
Besides management of tags you’ll notice better loading times of your website due to asynchonous loading of scripts.
<iframe class="youtube-player" width="640" height="360" src="https://www.youtube.com/embed/KRvbFpeZ11Y?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation"></iframe>
Technical stuff:
WordPress only allows placement of tag-manager-code in the footer through wp_footer action hook. So if you want to place the code directly behind the body tag you have to edit your theme like this:
…
<body>
<?php global $wp_google_tag_manager;
if(is_object($wp_google_tag_manager) && is_a($wp_google_tag_manager,”WpGoogleTagManager”)){
$wp_google_tag_manager->output_manual();
} ?>
…

WP Google Tag Manager

Includes tags (code snippets) from Google Tag Manager into your site

Assign Categories vs WP Google Tag Manager