turtlepod

<a href="http://genbumedia.com/plugins/fx-skype-link-enabler" rel="nofollow ugc">f(x) Skype Link Enabler</a> is a very simple plugin to allow skype protocol in WordPress menu URL.
This plugin will allow you to use “skype:user.name” in custom menu URL field. Without this plugin, WordPress will not recognize “skype:” protocol and remove your skype link.
This plugin will also enable “skype:” protocol in general.

f(x) Skype Link Enabler

Enable Skype Protocol in Custom Menus Item URL.

Silkalns

WP Chill

Cristian Raiber

A very useful plugin for everyone using WordPress. Adds reCaptcha security to the WordPress login form, register form and comment form. This plugin could help your blog get rid of a lot of spam comments or brute-force attacks.
Nothing gets passed it if the reCaptcha doesn’t validate.
A few notes about the plugin:
<ul>
<li>Supports audio or image captcha types</li>
<li>Can generate the reCaptcha image / audio type in a number of predefined languages</li>
<li>Adds reCaptcha protection to the WordPress login form</li>
<li>Adds reCaptcha protection to the WordPress register form</li>
<li>Adds reCaptcha protection to the WordPress comment form</li>
<li>Adds reCaptcha protection to the WordPress recover password form</li>
</ul>

Uber reCaptcha

This plugin adds the reCaptcha form to the WordPress login form, recover password form, register form and comment form.

f(x) Skype Link Enabler vs Uber reCaptcha