Links to tutorial on Probability, Graphs and more

Found a few good websites on probability, scheduling, graphs etc
posting them here for better
1) Bayesian Networks in Java
2) A Brief Introduction to Graphical Models and Bayesian Networks – very nice beginner level tutorial on Bayesian network
3) Directed Graphs and Critical Paths– The Mathematics of Scheduling
4) Graphs – the Princeton way
5) Critical Path Analysis– another nice tutorial with several examples
6) Graph Theory Tutorial
7) Probability, Maths and more– easy