The smart_listing ruby gem, built by Sology developer Łukasz Jachymczyk, is a very powerful gem that I'm surprised isn't used by more developers.

Learn how to incorporate and customize the Kaminari pagination gem, including how to incorporate AJAX based pagination.

For the past several years the `will_paginate` gem has become one of the most popular gems to integrate into a rails application, and for good reason. I remember back to when I started developing PHP applications, integrating pagination was nasty business. Will paginate makes pagination so easy that you can integrate it within a matter of minutes and it works very well.