Data Journalism, a series of training sessions from the Google News Initiative.
Getting started with data journalism, a video tutorial series by Alastair Otter on Media Hack (2017).
ProPublica practices data journalism, and teaches it. See videos of five of the lessons from ProPublica’s Data Institute: Introduction to Code, How Websites Work, HTML, Basic CSS and CSS Classes. Also posted is a detailed outline of the curriculum for the Institute. ProPublica also sells data at its Data Store.
The Open Data Handbook discusses the legal, social and technical aspects of open data, with case studies and handy tips.
Codementor offers online tutorials for a fee data science techniques in programs such as Python and R.
KDnuggets offers a wide variety of tutorials focusing on data mining, analytics and data science, including 3 Viable Ways to Extract Data from the Open Web, 4 lessons for Brilliant Data Visualisation, Mining Twitter Data with Python and Text Mining 101: Topic Modeling.