Symfony is a world-renowned framework for web-applications development. Using it allows seamless design of large scale softwares, eases team-work and code sharing between developers. Btw, it’s French.
Angular is a widespreak framework for front applications. Many solutions are fighting over this scene, but Angular is winning it by becoming a standard in low-cost hybrid mobile apps development.
WordPress is the most used content management system throughout the world. A nicely-thought website creation with WordPress allows its owner to update the site’s contents without any specific knowledge.
Current trend is in flexible websites that adapt to the visitor’s screen size. You do not want to lose clients because they can’t check you out from their mobile phone!