#1. w3schools -
All You need to do is just go to W3schools and select a tutorial of the language you want to learn, then take a cup of coffee and start learning.
No skills required.
You will learn > HTML/CSS (HTML5/CSS3), Javascript, PHP, ASP, XML, AJAX, jQuery
No skill required.
You will learn > HTML/CSS, PHP, jQuery, JavaScript, Python, Ruby
#3. Code avengers
No Skills Required
You will learn > HTML/CSS (HTML5/CSS3), JavaScript
#4. CodeSchool -
Codeschool provides you a very easy to use interface, Design, and not much unwanted text.
No skills required.
Language you will learn > HTML/CSS, Ruby on Rails, JavaScript, iOS
#5.TeamtreeHouse -
Teamtreehouse is very similar to Codeschool which provides you simple and easy way to learn Coding.
No skills required.Languages you will learnHTML/CSS, iOS, Android, Wordpress
#6.Dreamincode -
Last one is Dreamincode, many developers and programmers have taken thier knowledge from Dreamincode. the only thing is the interface is a bit boring and plenty of text as well.
No skill required
Languages you will learn> C++, Java, VB, VB.net, C#, PHP, ColdFusion,
Thats it, Try these Sites to enhance your coding knowledge, Very usefull For beginners.