This plugin allows your visitors to rate your posts using star ratings. By default they can rate the posts out of five stars, but it's easy to change that value in the backoffice plugin settings. Users with JavaScript enabled can vote without reloading the page using an AJAX call.

The plugin works when JavaScript is disabled by the reader, too. By default, each vote is checked against a list of IP addresses to make sure that it's not a duplicate, but this can be disabled in the backoffice.