#1. Wikibooks
The Computing section on Wikibooks deals with books on Computer Languages as well as other related books.
http://en.wikibooks.org/wiki/Subject:Computing
#2. LandofCode
LandofCode offers tutorial based courses in languages ranging from PHP to scripting languages like HTML. It even offers a Real-time code editor to let you see how your code works.
http://www.landofcode.com/
#3. WebMonkey
With courses in HTML 5, AJAX, jQuery and much more, WebMonkey is the right portal for you to learn quick.
http://www.webmonkey.com/tutorials/
#4. W3Schools
W3Schools is a popular portal among the student community to learn languages in Web and Multimedia domain through easy tutorials.
http://www.w3schools.com/
#5. Free-ed
Free-ed College of Computers & Information Technology provides courses in many languages such as Visual Basic, C++, ASP and even Perl.
http://www.waybuilder.net/free-ed/Navigation/Level01/01_CompInfoTech.asp
WebSlack 