Permalinks are not required in your bibliography by most citation styles anymore, but they are definitely useful for revisiting online articles that you took notes on but didn't print out.
If you are using a database not included in this LibGuide, look for a link on the citation page that says Permalink, Bookmark, Permanent Link, etc. If you do not see this, try scrolling down to the bottom of the article and looking for a link, URL, etc.
TIP: Save the permalink for any article you find that you think you might use in your research. You can bookmark it, print it out, copy it to MS Word, or even save it in an online bookmarking site like Delicious.
Permalinks are the easiest way for faculty to refer to a paid library online resource (article, ebook, etc.) from within Canvas. This replaces "E-Reserves" and is more easily maintained by the teacher.