First of all, my main job is Web Development basically via PHP but any other language can be used as well. HTML5, MySQL5.5, CSS3 and JS are all inside the PHP package that I know of course.
Web development is a broad term for the work involved in developing a web site for the Internet (World Wide Web) or an intranet (a private network).
Web development can range from developing the simplest static single page of plain text to the most complex web-based internet applications, electronic businesses, and social network services.
A more comprehensive list of tasks to which web development commonly refers, may include web design, web content development, client liaison, client-side/server-side scripting, web server and network security configuration, and e-commerce development. Among web professionals, “web development” usually refers to the main non-design aspects of building web sites: writing markup and coding.
Basically, I personally try to escape any statistic website. Even clients who ask me to do so for them, I simple tell them the difference and how much it costs them each time they want to edit something while an Active website can be easily edited by them anytime they want and/or whenever wanted to add a new web page or remove one.
Web development ranges form the simplest tasks to the highly professional and complex applications. This can include the very simple plain-text page to the complicated applications of the web-based internet, or social networking. This new option that is currently is the best will make all websites so simple for us and costing much less for the clients.