Even+More+On+Wikispace

How to Add Members
To invite members to view and comment on your wiki, click the "Manage Wiki" option on the left, scroll down to People and select Invite People.

After you click Invite People, two boxes should pop up: Send To and Your Message. In Send To you can type up to 100 email addresses or usernames separating each with commas. After you've finished, click Send.