Making a work available to an audience occurs through publishing in print, communicating online, performing or exhibiting a work.
There are copyright considerations in making work available through commercial, academic, or self-publishing methods, and which include any material in which copyright may subsist, including data, images, quotes, film frames, and so on.
Are permissions received if required? See Including content of others.
Am I breaching a contract with a funder if I am publishing to Open Access, is the journal reputable, and is the agreement clear about ownership of copyright if I publish with this journal?
For more information about publishing in journals, including the choice of journals, see the Library publishing guide.
Most provisions and licences used within University do not apply when presenting at conferences. This is considered a public use of content, and in many cases Fair Dealing will not apply either - you may find that some content is usable under Fair Dealing for purposes of criticism or review.
Most provisions and licences used within University do not apply when posting to social media.
Social media requires the same adherence to copyright laws as any other publishing activity. Sharing academic papers or material requires you to have the right to do so, remember to check any publishing agreement for your material first. If your material is accessible in a journal or repository (Federation ResearchOnline repository) or your data (Federation.figshare) you can share the link to it without concern.
It is important to remember when dealing with networking/sharing platforms such as ResearchGate/Academia that all the normal rules of copyright still apply. How a researcher may use ResearchGate will depend on what agreement or licence the researcher has with their publisher.
Researchers can check publishers' policies via Sherpa. This site will indicate which version of the work you can load and if there is an embargo period.