- rmagick methods: resize_to_fit for covers
- carrierwave uploader for covers from URL or local disk
- simple_form forms for adding end editing reviews
- less-rails using less, not scss for css generation
- twitter-bootstrap-rails bootstrap for views
- navigasmic menu generation
- cloudinary cloud storage for images
- will_paginate for pagination
I also added about site, changed all .erb files to HAML, override some bootstrap settings, made infinite scrolling(check this tutorial) and searching by author, title, reviewer.