Justin Tadlock

Hybrid Hook Widgets is a plugin that creates new widget areas for the <a href="http://themehybrid.com/themes/hybrid" rel="nofollow ugc">Hybrid theme</a> and attaches them to the theme’s action hooks. Basically, it allows you to add widgets pretty much anywhere.
Typically, to add extra stuff to the theme, you must use one of Hybrid’s action hooks. This can be quite confusing to some users. This plugin was created mainly for those users without much XHTML and PHP knowledge. It allows them to take advantage of Hybrid’s advanced hook system without the need to understand how it works. Of course, even advanced users can take advantage of this, especially when dealing with client work.
This plugin is for WordPress 2.8+ only.
You must have the <a href="http://themehybrid.com/themes/hybrid" rel="nofollow ugc">Hybrid theme</a> installed to use it.
Full instructions for use can be found in the plugin’s <code>readme.html</code> file, which is included with the plugin download.

Hybrid Hook Widgets

Adds 11 new widget areas to the Hybrid WordPress theme framework using its action hooks.

Andy Whalen

WP Hooks is a plugin for WordPress that allows you to add JavaScript, HTML, or other code to your 
header and footer without modifying your theme. WP Hooks uses the wp_head() and wp_footer() hooks 
built in to WordPress to add content to your header and/or footer. It’s great for those who have 
custom JavaScript, CSS, or other code (Google Analytics, meta tags, etc.) in their header or footer 
and don’t want to or can’t modify their theme.
Find <a href="http://amwhalen.com/blog/projects/wp-hooks/" rel="nofollow ugc">more instructions and discussion</a> on the WP Hooks home page.

WP Hooks

WP Hooks allows you to add JavaScript, CSS, meta tags, etc. to your header and footer without modifying your theme.

Hybrid Hook Widgets vs WP Hooks