awesome sites for programmers

sites are:

1 - here is some awesome site for programmer and programming: http://rosettacode.org/wiki/Rosetta_Code
there you can find a problem's implementation in many various languages

2 - site was established based on Donald Knuth's concept of literate programming. here it is: http://en.literateprograms.org/LiteratePrograms:Welcome
there codes are displayed in easy-to-read way

3 - the stony brook algorithm repository: http://www.cs.sunysb.edu/~algorith/

4 - dictionary of algorithms and data structures: http://xlinux.nist.gov/dads/

5 - CS portal for geeks: http://www.geeksforgeeks.org/

6 - algorithm and data structures with implementations in c++ and java: http://www.algolist.net/

7 - IBM's C/C++ documentation and its features: http://publib.boulder.ibm.com/infocenter/comphelp/v8v101/index.jsp

8 - C/C++ learning made simple: http://www.c4learn.com/

9 - http://wcipeg.com/wiki/Main_Page

10 - learn C with good explanations: http://www.cprogramming.com/

11 - video tutorials: http://www.thenewboston.org/tutorials.php

enjoy

i want to update the list with sites that would gain attention of coders:

1 - sharpen your skilss: http://sixrevisions.com/resources/10-puzzle-websites-to-sharpen-your-programming-skills/

2 - leetcode: http://leetcode.com/

3 - programming praxis: http://programmingpraxis.com/

4 - hacker earth: http://www.hackerearth.com/

5 - for hacker, hackthissite: http://www.hackthissite.org/

6 - blog of some puzzles: http://www.cseblog.com/search/label/EasyPuzzles

7 - stanford's site 01: http://graphics.stanford.edu/~seander/bithacks.html#CopyIntegerSign

8 - stanford's site 02: http://www.stanford.edu/class/cs97si/

i got the above links from: http://www.quora.com/Websites/What-are-the-best-websites-a-programmer-should-visit

 - Polish programming tasks: http://main.edu.pl/en/archive

 - Online Encyclopedia of Integer Sequences: http://oeis.org/wiki/Welcome

 - Puzzle Sequences from Online Encyclopedia of Integer Sequences: http://oeis.org/Spuzzle.html

 - Some cool math: https://brilliant.org/

happy coding :)