jonkemp

Removes unwanted tags from your WordPress header.
The function wp_head; found in the header.php template file adds unnecessary tags to your WordPress template. These tags are the RSD, or Really Simple Discovery, link, the Windows Live Writer Link and the WordPress version number. This plugin will stop all 3 tags from being automatically added to your WordPress header.

WordPress Head Cleaner

Removes unwanted tags from your WordPress header.

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.

WordPress Head Cleaner vs WP Hooks