Best practices for modern web development

Learn How to Develop the Next Generation of Applications for the Web => https://github.com/google/WebFundamentals

Symfony2 websites source code

http://knpbundles.com/ => https://github.com/KnpLabs/KnpBundles http://ipsum.knplabs.com/ => https://github.com/knplabs/KnpIpsum http://sylius.org/sandbox/ => https://github.com/Sylius/Sylius