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http://www.dessci.com/en/products/mathplayer/
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https://www.coursera.org/
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https://www.coursera.org/account/accomplishments
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https://class.coursera.org/datasci-002/class/preferences
https://www.coursera.org/uw
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https://learner.coursera.help/
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https://class.coursera.org/mooc/help/messaging
https://class.coursera.org/mooc/help/manager/glossary/overview
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https://class.coursera.org/datasci-002/forum/index
http://blog.rstudio.org/2014/01/17/introducing-dplyr/
http://pandas.pydata.org/
https://hive.apache.org/
http://pig.apache.org/
http://www.cascading.org/
https://developers.google.com/bigquery/
http://www.vldb.org/pvldb/vol4/p1318-chattopadhyay.pdf
http://research.google.com/archive/spanner.html
http://research.google.com/pubs/pub36632.html
https://class.coursera.org/datasci-002/wiki/OptionalRealWorldProject
http://coursolve.org/
http://coursolve.org/join
https://class.coursera.org/datasci-002/forum/list?forum_id=12
http://coursolve.org/post-need
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https://www.coursolve.org/need/54
https://www.coursolve.org/need/62
http://coursolve.org/courseproject/43
http://coursolve.org/browse-needs
https://class.coursera.org/datasci-002/forum/list?forum_id=12
https://class.coursera.org/datasci-002/wiki/OptionalRealWorldProject
http://www.coursolve.org/courseproject/43
https://class.coursera.org/datasci-002/wiki/PythonResources
https://class.coursera.org/datasci-002/quiz?quiz_type=survey
https://class.coursera.org/datasci-002/wiki/syllabus
https://class.coursera.org/datasci-002/wiki/ClassVirtualMachine
https://class.coursera.org/datasci-002/wiki/GithubInstructions
https://class.coursera.org/datasci-002/wiki/OptionalRealWorldProject