Accounts and documentation are shareable resources within Socius. To share an account, find the account, use the gear icon and select Share via email. You will have the opportunity to share with an email address or select a user on the workspace. Each user is sent a unique, secure link. This share can be deleted later, if necessary. To share documentation, the process is essentially the same.
If you want to create a public link to share within a project, you can share the resource with your own email. This way, you can still revoke access later by deleting your own share.