Openhub
Grep Code
Antepedia
Ankerel
Codase
Dzone Snippets
Snipplr
Codepad
Ideone
Pastie
Github article on searching code.
In the beginning, I didn't have a lot of programming knowledge and I had to read and watch a lot. I got into the habit of doing this for longer than was healthy. The only way to progress was to stop watching and start doing. It was hard at first, but eventually I grew new habits by doing challenges everywhere I could find them. No matter how heavy the Maths or how little I understood, I just tried my best.
This List represents all the resources I have discovered so far. Get Busy!
Code Wars
Project Euler
/r/Dailyprogrammer
Code Abbey
Coder Byte
Coding Bat
Martyr2's Mega Project List
Karan's Mega Project List
25 Project everyone should know
The Python Challenge
Checkio
Ruby Warrior
Flight Code Game
Code and Conquer
49 ideas for Game Clones to code
Exercism
Ruby Koans
Javascript Koans
Codekatas
Code Review at Stackexchange
Github explore
Github Search
Discover Gists
Searchcode
See codesearch.md for an extended list.