It answers the question on StackOverflow: http://stackoverflow.com/questions/28322103/load-more-content-from-the-server-and-add-it-to-the-page
It presents the way how to implement the load more button functionality using Ember.js and its query params feature. The example contains a simple server side that can take two query params: limit and offset.
Pagination is not implemented, though you can easily do it yourself based on the load more button.
Enjoy!
$ git clone https://github.com/andrusieczko/ember-loadMore-example.git
$ cd ember-loadMore-example
$ npm install
$ bower install # possibly you don't have to do that
ember server- Visit your app at http://localhost:4200.