Love/Like/Upvote Button
Add a Twitter style love/like/upvote button to your content.
Tag do plugin: thumbs-up
Applause/Like/Upvote Button
Add an applause/like/upvote button to your content.
Post Like Manager
A smooth ajax-based like/dislike functionality for wordpress posts, pages, Custom post types..
Recommend
Recommend allows you to add a like user action to your content. Unlike social sharing…
Post Likerator
Simple like/unlike function for posts. No dislikes. Bring your own CSS.