Graph Represenations, Traversal and Applications

Representation
http://www.geeksforgeeks.org/graph-and-its-representations/
http://www.sanfoundry.com/c-program-represent-graph-adjacency-matrix/

Traverse all the nodes of a graph
Breadth First Traversal of a Graph
Depth First Traversal of a Graph
Iterative Depth First Traversal

Applications:
http://www.geeksforgeeks.org/applications-of-breadth-first-traversal/
http://www.geeksforgeeks.org/applications-of-depth-first-search/

Graph Problem Set:
https://leetcode.com/tag/graph/
http://www.programcreek.com/2012/11/top-10-algorithms-for-coding-interview/
https://www.interviewbit.com/courses/programming/topics/graphs/