tempranova

This is a simple plugin that uses AJAX to load comments, converting the “Newer/Older Comments” button into a button that loads more comments instantly.
This plugin also paginates nested replies. You can customize styling in whatever way you choose.
Using Settings > Comment Load More, user can set desired pagination (currently both comments and replies have the same number).

Comment Load More

This plugin allows you to load more comments instantly via a button push (AJAX), instead of pagination that reloads the page.

alex

Basic verification and asynchronous posting with snazzy effects. Developed specifically to work with the mootools framework.
Should deprecate peacefully, and tested in Safari, Opera, Firefox and IE7
MooTools is an ultra-light frame work with faster operation than prototype/scriptaculous and more intuitive nomenclature than jQuery. This plugin will not work if you already use another library on your site (JQuery, scriptaculous, etc).
Should you have any issues plugging this into your site please email me: mcp@handsandfeetdesign.com

Ajax Comment Posting

Ajaxify commenting with the MooTools JS Framework- mootools.net

Comment Load More vs Ajax Comment Posting