Kartik Dholariya

This plugin is used to create sliding logos. You can add name, featured image and category. just use the [Logos_Carousel] short code in required section and it will work fine. One of the amazing features of this plugin is that it has touch and swipe support. That means your users from any devices can view the logo carousel/slider nicely.
Features
<pre><code>Fully Responsive
1 layouts 
Slider control
Very lightweight.
Unlimited logos display.
Widget Supported
</code></pre>

Logos Carousel Slider

Logos Carousel slider is very helpful to display clients, partners and affiliates logos. You can create shortcode and use it. thats simple.

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.

Logos Carousel Slider vs Uber reCaptcha