Knowledge-base

DI, DIC

http://gnugat.github.io/2014/01/22/ioc-di-and-service-locator.html

http://lostechies.com/derickbailey/2011/09/22/dependency-injection-is-not-the-same-as-the-dependency-inversion-principle/

http://ralphschindler.com/2012/10/10/di-dic-service-locator-redux

http://fabien.potencier.org/article/16/symfony-service-container-the-need-for-speed

Services

https://igor.io/2013/03/31/stateless-services.html

SOLID

http://www.codemag.com/article/1001061

http://code.tutsplus.com/tutorials/solid-part-1-the-single-responsibility-principle--net-36074

http://code.tutsplus.com/tutorials/solid-part-2-the-openclosed-principle--net-36600

http://code.tutsplus.com/tutorials/solid-part-3-liskov-substitution-interface-segregation-principles--net-36710

http://code.tutsplus.com/tutorials/solid-part-4-the-dependency-inversion-principle--net-36872