Reference about social network data-mining
I'm going to pursue the following series of online courses on the Coursera: 
Become a Social Scientist: Methods and Statistics by University of Amsterdam. The good news - it is free, or you can get a nice-looking certificate for $49 or so. The bad news - the nearest enrollment is Aug 31st 2015. You will have opportunity to get a lot of information in condensed way during a short time frame and you will be enforced to actually apply the knowledge in exercises, quizzes and project assignments. You will also have opportunity to discuss lessons/projects on the forum with many other students and lecturers. 

[update] I apologize, I just remembered there is another course Introduction to Statistics for the Social Sciences by University of Zurich - just started April 28th, 2015. If you want to pursue it - do not forget about deadlines for quizzes and homeworks. Good luck!