To can share a folder with an individual, a group of people, or the general public. To share folder, navigate to the Organize & Share Folders tab and select a folder's small folder icon with an arrow:
A lightbox will appear. You can choose which fields to share, what other users can do with your shared folder, and whether or not you want the folder to appear in your school's RefShare area (this will make it public). At the top of the box there will be a URL you can give to anyone you wish to share the folder with, and the option to share through social media:
Shared folders will have a small figure inside their icon:
Once a folder has been shared, you can generate the link or send a formatted email with the link by selecting the same icon. You can also edit your sharing settings or stop sharing the folder at any time from this menu:
There is no way to technically limit the sharing of a folder to a single person or group, but users will need to know the URL of the folder to view it unless you list it in RefShare.