some important website

Here are some important Websites for learaning online :-
http://www.w3schools.com/ for " Web Building" like html, xml, sql,.net,web developing

http://www.javacoffeebreak.com/ & http://java.sun.com/docs/books/tutorial/ for learning
java

http://www.ee.surrey.ac.uk/Teaching/Unix/ for Unix

All these tutorial are deals in the basic level that i need .... May be i will find some better site
that will help in future.. For the time being these are the site That is going to help me