Creational patterns
http://en.wikipedia.org/wiki/Abstract_factory_pattern
http://en.wikipedia.org/wiki/Builder_pattern
http://en.wikipedia.org/wiki/Factory_method_pattern
http://en.wikipedia.org/wiki/Prototype_pattern
http://en.wikipedia.org/wiki/Singleton_pattern
Structural patterns
http://en.wikipedia.org/wiki/Adapter_pattern
http://en.wikipedia.org/wiki/Bridge_pattern
http://en.wikipedia.org/wiki/Composite_pattern
http://en.wikipedia.org/wiki/Decorator_pattern
http://en.wikipedia.org/wiki/Facade_pattern
http://en.wikipedia.org/wiki/Flyweight_pattern
http://en.wikipedia.org/wiki/Proxy_pattern
Behavioral patterns
http://en.wikipedia.org/wiki/Chain-of-responsibility_pattern
http://en.wikipedia.org/wiki/Command_pattern
http://en.wikipedia.org/wiki/Interpreter_pattern
http://en.wikipedia.org/wiki/Iterator_pattern
http://en.wikipedia.org/wiki/Mediator_pattern
http://en.wikipedia.org/wiki/Memento_pattern
http://en.wikipedia.org/wiki/Observer_pattern
http://en.wikipedia.org/wiki/State_pattern
http://en.wikipedia.org/wiki/Strategy_pattern
http://en.wikipedia.org/wiki/Template_method_pattern
http://en.wikipedia.org/wiki/Visitor_pattern