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Various Collaborator roles have different privileges to change and create allow you to control the privileges you grant to someone for changing and creating new content within a folder, or upload uploading revisions to a file. To add someone as a Collaborator, they must already have a Box account, either through UTBox or via a personal Box account.
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You can share folder contents or specific files with people by sending a link via an email directly from Box, pasting it into a separate email message or calendar invitation, or by embedding adding the link embed code within to a website (advanced). Collaborators can access appropriate files through their Box web interface or through Sync, in addition to any links you send them.
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