Recommended reading
2017 John Stuart Mill: Freedom of expression and harm in the ‘post-truth’ era (Ethical Space: The International Journal of Communication Ethics) abstract and introduction.
2017-10-12 The Pro-Free Speech Way to Fight Fake News (ForeignPolicy.com)
New
2018-10-15 How to Fix Fake News (nytimes.com)
2018-10-11 Facebook Tackles Rising Threat: Americans Aping Russian Schemes to Deceive (nytimes.com)
2018-10-10 Fighting disinformation with media literacy—in 1939 (cjr.org)
2018-10-10 Leaked Google research shows company grappling with censorship and free speech (TheVerge.com)
2018-10-07 Is This True? A Fake News Database (politico.com)
2018-02-01 Mais au fait, comment traduire “fake news” en français ? (telerama.fr)
2018-01-16 Macron’s fake news law will threaten democracy (Politico.eu)
2018-01-08 Macron’s fake news law will protect democracy (Politico.eu)
2017 Fake news Infographic (informationisbeautiful.net)
Wikipedia Freedom of speech, Universal Declaration of Human Rights & the International Covenant on Civil and Political Rights
Article 19
1. Everyone shall have the right to hold opinions without interference.
2. Everyone shall have the right to freedom of expression; this right shall include freedom to seek, receive and impart information and ideas of all kinds, regardless of frontiers, either orally, in writing or in print, in the form of art, or through any other media of his choice.
3. The exercise of the rights provided for in paragraph 2 of this article carries with it special duties and responsibilities. It may therefore be subject to certain restrictions, but these shall only be such as are provided by law and are necessary:
(a) For respect of the rights or reputations of others;
(b) For the protection of national security or of public order (ordre public), or of public health or morals.
More
1945 The Paradox of tolerance ( Karl Popper)
2017-019-22 Alternative facts
2018-09-26 Zemmour, Moix, Campion : quelles sont les limites à la liberté d’expression? (lemonde.fr)
2018-06-04 Free speech cannot be sacrificed to strike fake news(thehill.com)
2018-06 DOSSIER: la mécanique du mensonge (unige.ch)
2018-03 Free Speech, Fake News and Democracy (law.berkeley.edu)
2018-01-18 Free speech concerns amid the “fake news” fad (article19.org)
2017-03-14 Countering fake news while safeguarding free speech (dw.com)
https://informationisbeautiful.net/visualizations/climate-change-deniers-vs-the-consensus/
https://informationisbeautiful.net/licensing/
New for you 
I have watch this interesting lecture about fake brands by Professor Peter Boland: https://meet.ie.edu/p1s5qpji0bm/
Here are a few links to information about a new book drawing some attention in the US.
John
2018-10-01 College-Aged Coddling (TheSlate.com)
2018-09-20 The Coddling of the American Mind review – how elite US liberals have turned rightwards (Guardian book review)
And the original article appears to be this:
2015-09 The Coddling of the American Mind (theatlantic.com)
“In the name of emotional well-being, college students are increasingly demanding protection from words and ideas they don’t like. Here’s why that’s disastrous for education—and mental health.”
In preparation of the discussion, you might enjoy this latest news
What an Audacious Hoax Reveals About Academia
Three scholars wrote 20 fake papers using fashionable jargon to argue for ridiculous conclusions.
https://www.theatlantic.com/ideas/archive/2018/10/new-sokal-hoax/572212/