http://www.slideshare.net/odino/be-lazy-be-esi-http-caching-and-symfony2-phpday-2011

http://seld.be/notes/esi-full-page-caching-with-symfony2

http://slides.seld.be/?file=2011-10-20+High+Performance+Websites+with+Symfony2.html

http://slides.liip.ch/static/2012-05-18_symfony-speed.html A demo project to explain symfony2 frontend optimizations step by step. Each branch represents an optimization. See the project wiki for explanation about the branches