Here are some common activities on your workspace, and what each kind of user is allowed to do.  Only users in your user's list have access to a workspace inside a Business Edition network.  To see if others in the network have the ability to join the workspace at will, check the Workspace Security setting.

Activity	Moderator	Editor	Writer	Reader
Create a Page
Edit a Page
View a Page
Rename a Page
Delete a Page
Change Page Security
Create a folder
Rename a folder
Delete a folder
View the contents of a folder
Move a page or file from Unfiled Items into a folder
Move a page or file from a folder into another folder
Move a page or file from a folder into Unfiled Items
Change folder security
Upload a File
Upload a new version of a file
View a File
Rename a File
Delete a File
Access and change workspace settings
View comments on a page
Create a comment on a page				*
Delete a comment on a page
Create page tags
Remove page tags
View page and file history
Revert pages and files to a previous version
Delete previous revisions of pages and files
Add HTML to a page

*Readers may create comments on page, only if that option is allowed by the Moderators in the Workspace Security setting