"WP PostVoting" plugin allows visitors to vote on your blog's content with a widget of the most voted posts.
nomination and voting
Divide posts into sections and implement voting for each of them. Great for list-type posts.
Vote on Post and Display Who Voted via gravatar thumbnail.
Oxford Debate is a plugin that allows to incorporate Oxford-Style debates on your website.
Easily add research-based, engaging buttons (such as "Respect" or "Important") to your site.
Vote It! Buttons for Blogpostings. Set very simple a digg, sphinn or another social-news-button in your blogpost.
Full-featured & real-time emotion/mood rating plugin which allows visitor to rate individual post though smilie icons.
Multi Rating & Review Matrix System plugin allows your blog/site visitors to rate a post, page based on up to ten multiple criteria
A plugin for specific niche questions your vistors can vote for.
A sort of "Reddit clone" that allows users to post links, up- or down-vote them, and comment on them.
Add fancy voting widget to any type of post and page with elegant themes
Allows users to vote on a topic using Twitter. Display results in standard banner sizes on posts, pages or widget. Optional Adsense Revenue Share.
A free, full-featured rating plugin that also live-mirrors your posts at Thumbar.com to boost your traffic.
A plugin that allows WordPress users to add voting functionality to their website.
A voting tool for the members or employees of a group, club, community or organisation (eg. HR) to provide internal feedback anonymously.
The Google Buzz button easily allows your blog to be shared.
The yahoo Buzz button easily allows your blog to be shared.
Add fancy star rating to any type of post and page with elegant themes
Enables your blog readers to suggest new post tags or upvote/downvote existing ones.
This plugin adds voting functionality for posts. visitors can vote for the post and against.
A WordPress plugin to allow simple upvoting of post objects by a user.
CBX Poll - Poll plugin for wordpress
This is a Google Buzz button that anyone can use on their site or blog to share news. It has a live "firehose" counter connected to it. This means tha
Adds a button which easily lets you +1 your blog posts.
Emojized allows visitors to a WordPress site to rate and react to content using Emojis. Because text without them is 🅱🅾®ℹ️🆖
Allow user add post like button above or below post content.
Easily create and manage polls for your site. Then display results in a post or page.
WP Social Feedback is a plugin that allows your users to submit feedback, view what other users have submitted and vote on other feedback submissions
This plugin lets you add a short, 2 choice poll to your post. The poll is submitted to Pikk, and your post is linked back from Pikk.