When you're reading something online (such as a news article, your class notes, or a blog post) you might want to take notes on it. Document Sources allow you to easily associate a Rem with one or more of these resources. RemNote will automatically fill out the titles for you. If you ever go back to that document in the future, you'll be able to see where you learned that information. You can add as many sources as you want.

There are three kinds of document sources:

URLs allow you to link to any place on the internet, whether it is a Wikipedia page or a YouTube video. References allow you to link to your own Rem, thereby making another Rem into a source. Lastly, you can attach PDFs as document sources as well.

To add a source to your Rem, there are two methods. If you prefer to use the mouse, click the "Add Source" button if you haven't added a source already or the "New Source" button if there is an existing source.

Alternatively, if you prefer to use the keyboard, you can also type /source to bring up the box to paste your URL or to reference a Rem, or /upload to instantly access your file system for PDFs.

For URLs, paste the URL in the box. For references, just start typing to find any Rem in your knowledge base. For PDFs, click the paperclip icon to open your computer's file system and choose your document. Typing /source will and /upload will shorten this process.

You may already know that you can merge Rems with the same name. Sometimes you might have a Document Source added to more than one Rem. When zoomed into a Rem with a Document Source shared by another Rem, you can merge their Document Sources, with all of the target Rem's Sources being added to the focused Rem and deleting it from your knowledge base. To merge all of a Rem's Document Sources into the currently focused Rem, click "Merge" and then the icon next to the Rem you want to merge.

In this example, both the "On Human Progress" and "We Need a New Science of Progress" Rems share the same Document Source of the Wikipedia page "Progress". Since the objective was to merge the Document Sources of We Need a New Science of Progress, On Human Progress was zoomed into (i.e. focused). The On Human Progress Rem then had the Wikipedia page Progress added and the We Need a Science of Progress Rem was deleted. In other words, by merging "We Need a New Science of Progress", we added its Document Source to our current Rem and then deleted that Rem from our knowledge base, all in two clicks.

By typing /source or /upload in the main body of your Rem, you can Document Sources in-line. A reformatted link will appear underneath as part of the Rem. Clicking this link will return you back to the original source. You can rename the Rem without losing your sources, which is useful for compiling lists of resources.

If you prefer not to see global sources, in the settings, navigate to Interface > Editor Interface. Check the global setting that is called 'Hide Inline Sources'. This option turns off the Inline Sources by default unless you focus on a Rem

For a video walkthrough of Inline Sources, check out this video: