From http://www.w3schools.com (Copyright Refsnes Data)

Web Building Primer

Every Web developer has to know the building blocks of the Web:

How the WWW works
The HTML language
The use of CSS (style sheets)
JavaScript programming
The XML standards
Server Scripting technologies
Managing data with SQL

WWW - The World Wide Web

The WWW is a network of computers all over the world. The WWW is most often called the Web.

The computers on the Web communicate using standard protocols and languages.

The W3C (The World Wide Web Consortium) are making the rules and standards for the Web.

Study our WWW Primer

HTML - The Language of the Web

HTML is the language of the Web, and every Web developer should have a basic understanding of it.

With HTML you use "markup tags" to define the content and layout of your Web pages.

The HTML tag <h1> defines a primary header, and <p> defines a paragraph.

Study our HTML Primer or Study our Complete HTML Tutorial

CSS - Cascading Style Sheets

Styles define how HTML elements are displayed, just like the <font> tag in older HTML.

When styles are saved in external files, you can change the style and appearance of all the HTML pages in your Web, just by changing your CSS document.

If you have ever tried to change the font or color of all the headings in all your Web pages, you will understand how CSS can save a lot of work.

Study our CSS Primer or Study our Complete CSS tutorial

JavaScript - Client Side Scripting

JavaScript is used for client-side scripting. Client-side scripting is about "programming" the Web browser.

To be able to deliver more dynamic web site content, you should teach yourself JavaScript.

A JavaScript statement like this: document.write("<p>" + date + "</p>") can write a variable text into an HTML page.

Study our JavaScript Primer or Study our Complete JavaScript tutorial

XML - Extensible Markup Language

XML is not a replacement for HTML. XML is used to describe and transport data, while HTML is used to display data.

XML and a number of different XML standards are rapidly becoming the most common tools for data transmission, data storing, and data manipulation.

Study our XML Primer or Study our Complete XML Tutorial

Server Side Scripting

Server-side scripting is about "programming" the Web server.

To be able to deliver more dynamic web site content, you should teach yourself server-side scripting.

With server-side scripting, you can (amongst many other things) access databases and return the results to a browser.

Study our Scripting Primer or

Study our Complete ASP tutorial, or our Complete PHP tutorial.

Managing Web Data with SQL

The Structured Query Language (SQL) is the common standard for accessing databases such as SQL Server, Oracle, Sybase, and Access.

Any webmaster should know that SQL is the true engine for interacting with databases on the Web.

Study our SQL Primer or Study our Complete SQL tutorial