Informatics

Useful sites:

w3schools.com
Do you want to know more about the Web? Try W3Schools.com. Hundreds of examples, and tutorials about HTML, XHTML, WML, StyleSheet, JavaScript, DHTML technologies. The best place to start.

codeproject
Another useful place is CodeProject.com. A huge tutorial and article collection where users may score the articles. The awesome tutorials might help you to make better code.