https://learner.coursera.help/hc/requests/new
http://www.dessci.com/en/products/mathplayer/
https://www.coursera.org/
https://www.coursera.org/courses
https://www.coursera.org//about/
https://www.coursera.org//about/careers
https://www.coursera.org//about/people
https://www.coursera.org//about/contact
https://www.coursera.org/
https://www.coursera.org/account/profile
https://www.coursera.org/account/accomplishments
https://www.coursera.org/account/settings
https://class.coursera.org/sna-004/class/preferences
https://www.coursera.org/umich
https://class.coursera.org/sna-004/
https://class.coursera.org/sna-004
https://class.coursera.org/sna-004/questions
https://www.surveymonkey.com/s/5NPGQRR?c=e1e907f560a8cb89fa702d58e28d0f5a2042762c
https://class.coursera.org/sna-004/forum/index
https://class.coursera.org/sna-004/lecture/index
https://class.coursera.org/sna-004/quiz/index?quiz_type=exam
https://class.coursera.org/sna-004/quiz/index?quiz_type=homework
https://class.coursera.org/sna-004/assignment/index
https://class.coursera.org/sna-004/human_grading/index
https://class.coursera.org/sna-004/wiki/courselogistics
https://class.coursera.org/sna-004/wiki/syllabus
https://class.coursera.org/sna-004/wiki/aboutus
https://share.coursera.org/wiki/index.php/Sna:Main
https://class.coursera.org/sna-004/wiki/FrequentlyAskedQuestions
http://help.coursera.org/
https://learner.coursera.help/
https://class.coursera.org/sna-004/forum/list?forum_id=10000&url=https%3A%2F%2Fclass.coursera.org%2Fsna-004%2Fassignment%2Fview%3Fassignment_id%3D2
https://class.coursera.org/sna-004/forum/list?forum_id=10001&url=https%3A%2F%2Fclass.coursera.org%2Fsna-004%2Fassignment%2Fview%3Fassignment_id%3D2
https://class.coursera.org/sna-004/help/programming?url=https%3A%2F%2Fclass.coursera.org%2Fsna-004%2Fassignment%2Fview%3Fassignment_id%3D2
http://spark-public.s3.amazonaws.com/sna/datasets/week1/LadaFacebookAnon.gml
http://snacourse.com/getnet
http://spark-public.s3.amazonaws.com/sna/other/hw1template.txt
http://spark-public.s3.amazonaws.com/sna/other/hw1_with_networkx.py
http://spark-public.s3.amazonaws.com/sna/other/hw1_with_igraph.R