The best websites a programmer must visit?

Quora

Programming Practice and Contest

• http://www.codechef.com/
• Sphere Online Judge (SPOJ)
• Programming Praxis
• Project Euler
• TopCoder, Inc. | Home of the world's largest development communityTopCoder, Inc. | Home of the world's largest development community
• Codeforces
• Programming Contests - Codesprints - Interviewstreet
• HackerEarth Beta
• The Python Challenge
• HackerRank

Tutorials

• LearnStreet
• GeeksforGeeks
• Code School
• Bit Twiddling Hacks
• CS 97SI: Introduction to Competitive Programming Contests
• CSE Blog - quant, math, cse puzzles: EasyPuzzles
• Me, Myself and Mathematics

Social Interaction

• Home - Quora
• Stack Overflow
• Interview Questions | CareerCup
• GitHub · Build software better, together.

Must Read

• Teach Yourself Programming in Ten Years
• 10 Puzzle Websites to Sharpen Your Programming Skills

Taken from Quora

Git - Getting Started

Git-scm - We have all seen those pages in github, where you can download the source codes of various projects, or scripts to do various things.. But what is that? What are versions, cloning, How do we contribute to a project?
What's all the hype about git and opensource..
Well you can get all your answers here.

Some features of using Git-

1. Branching and Merging
2. Small and Fast
3. Distributed
4. Data Assurance
5. Staging Area
6. Free and Open Source

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