This page is being updated to reflect changes in the transition from F1000 Workspace to Sciwheel. The information immediately below is correct.
Outside (non-UNC) collaborators can be invited to a UNC team member's project(s) using the outside collaborator's email (does not need to be a UNC email address). In accepting the invitation, the collaborator will sign up to Sciwheel for free (30-day trial, which will allowed continued access to the project beyond 30 days).
Collaborators will get a 30 day trial, during which time they can have up to 3 projects and use all of the tools. After the 30 days, what ends is receiving article suggestions/smart citation suggestions and importing PDFs from DropBox, Google Drive and OneDrive). They will not be able initiate set-up of new projects after the 30 days.
Once they're part of the shared project, collaborators can do everything you can normally do in a shared project - add and remove articles, annotate, access shared manuscripts etc. This will continue beyond the 30 day trial.