Doyle Lewis

Use this plugin to create and manage polls you can put anywhere on your site with a widget. Features:
<ul>
<li>Widget for placing polls</li>
<li>[bsp_show_results] shortcode for displaying poll results</li>
<li>Easy administration of new polls and options</li>
<li>Fully translatable</li>
</ul>

BuyHTTP Super Polls

Easily create and manage polls for your site. Then display results in a post or page.

Pierre Lebedel

The Kodex Posts likes plugin allows your visitors and logged in users to like or dislike your posts, pages, and custom post types. 
The AJaX based interface is clean and fully customizable. 
The Dislike button is not required, and the buttons labels are editables. 
The buttons shows their counter. 
Shortcodes are availables for display the buttons on your post content and for the Like counter only. 
In the admin interface, columns are showing the actual count, and there is a metabox in the editon page.

Kodex Posts likes

A simple interface for including like/dislike buttons on posts. Keep up the good work! 
In future I'd love to see a dashboard area where you get a quick snapshot each posts likes / dislikes which you could sort, search and filter to make it easier to review the feedback, but it's not essential.



Really Great Plugin

It does exactly what I need. It is very simple and works well. Seems to be a clean install and lightweight functionality.  Hopefully the author comes back to do an update soon. Many thanks for this wonderful plug in.

This plug in is simple and great. Out dated but it still works.

A simple AJaX based WordPress Plugin which allows your visitors to like or dislike posts, pages and cutom post types.

BuyHTTP Super Polls vs Kodex Posts likes