FOR C & C++:
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1) http://www.cprogramming.com/
FOR PYTHON:
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1) http://www.docs.python.org/tutorial
3) http://www.learnpythonthehardway.org
FOR JAVA:
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1) http://www.oracle.com/technetwork/java/index.html
2) http://docs.oracle.com/javase/tutorial/ (J2SE only)
6) http://www.omgjavaprograms.com/
7) http://www.jdbc-tutorial.com/
8) http://www.javabeginner.com/
9) http://www.javalearner.com/advanced.htm
10)http://thenewboston.org/tutorials.php
11)http://www.javatpoint.com/
13) http://www.roseindia.net/FOR WEB
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1) http://www.w3schools.com
3) http://www.istutorials.com/
5) http://webdesign.tutsplus.com/
6) http://codecademy.com
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FOR VIDEO TUTORIAL
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1) http://www.learnerstv.com/ (video tutorials of all subjects)
2) To all those who are seeking tutorials on Java technologies here are the few good youtube channels that I know which have good tutorials ->
http://www.youtube.com/user/koushks/videos?view=1
http://www.youtube.com/user/thenewboston/videos?view=1
http://www.youtube.com/user/java9s/videos?view=1
http://www.youtube.com/user/zaneacademy/videos?view=1
http://www.youtube.com/user/zajavaprogramming/videos?view=1
http://www.youtube.com/user/edu4java/videos?view=1
Design Patterns -> http://www.youtube.com/user/zapatterns/videos?view=1
http://www.youtube.com/user/IntertechTraining/videos?view=1
TOP CODING CONTEST SITES:
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1) https://facebook.interviewstreet.com/recruit/challenges(for facebook)
2) http://www.facebook.com/hackercup/ (for facebook)
3) http://code.google.com/codejam (for google)
6) http://www.topcoder.com/
7)http://www.techgig.com/
FOR SOFTWARE TESTING
————————————————
1) http://www.guru99.com/
FOR SOURCE CODE
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1) http://www.codejaw.com (for code sharing and code hosting)
3) http://www.sourcecodesworld.com (for source code of mini project)
4) http://www.codeproject.com/ (Free source code and tutorials for Software developers and Architects)
5) http://www.planet-source-code.com/
6) http://code.ohloh.net/ (for Code Sharing and Analysis )
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ASP.NET Links
……………………………………………………..
1. http://www.homeandlearn.co.uk/csharp/csharp.html
2. http://www.java2s.com/Tutorial/ASP.NET/CatalogASP.NET.htm
3.https://skydrive.live.com/?cid=2c5f5b0560e374cb&id=2C5F5B0560E374CB%21118
4.http://csharpdotnetfreak.blogspot.com/
5.http://www.completecsharptutorial.com/
FOR ONLINE COMPILER
————————————————
http://codepad.org/
http://writecodeonline.com/javascript/
http://tinkerbin.com/
http://jsbin.com/
http://cssdesk.com/
http://jsdo.it/login/
http://code.google.com/apis/ajax/playground/
http://ideone.com/
http://viper-7.com/
http://www.jslint.com/
http://nodejs.org/
https://c9.io/
http://www.coderun.com/ide/
https://compilr.com/