Liker – WordPress Rating Plugin
This is a plugin for collecting ratings of posts and WordPress pages. The plugin allows you to quickly and accurately collect information about the usefulness of your articles. The plugin can collect ratings in the same and multiplier formats. You can choose one of: like / dislike, yes / maybe / no and a simple +1 button. This flexibility of settings allows you to use the plugin for sites of various subjects and in different cases of use. Many popular sites use similar solutions. For example, Google uses this to measure the effectiveness of its reference materials.
