some algorithms implemented by mapreduce, I haven't test the some codes yet, please use it carefully.
1、http://hadooptutorial.wikispaces.com/Hadoop
2、http://famousphil.com/blog/2011/06/a-hadoop-mapreduce-solution-to-dijkstra%E2%80%99s-algorithm/
3、http://importantfish.com/
4、Mining of Massive Datasets, http://infolab.stanford.edu/~ullman/mmds/book.pdf
5、Hadoop技术内幕:深入解析MapReduce的架构设计与实现原理,董西成