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). This can include lots of stuffs.
However, among web professionals, "web development" usually refers to the main non-design aspects of building web sites: writing markup and coding. Web development can range from developing the simplest static single page of plain text to the most complex web-based internet applications, electronic businesses, or social network services.
Typical areas in Web development Web Development can be split into many areas and a typical and basic web development hierarchy might consist of:
Client Side Coding Ajax
Flash
JavaScript
Microsoft Silverlight
REAL Studio Web Edition
HTML5 and CSS3
Server Side Coding ASP (Microsoft proprietary)
CSP, Server-Side ANSI C
ColdFusion
CGI and/or Perl (open source)
Groovy (programming language) Grails (framework)
Java
Lotus Domino
PHP (open source)
Python
REAL Studio Web Edition
Ruby
Smalltalk
SSJS Server-Side JavaScript
Websphere
.NET
So don't just sit there, all you need is just develop yourself