It's easy - just select the desired access level, copy this link and send it via email, instant message, etc.Link: Just a link to your wiki. Post this anywhere and people can ask you for the invite key.
What Kids Can Do (WKCD) is a national nonprofit that advocates for learning that engages students as knowledge creators and not simply test takers.WKCD has compiled a list of Web 2.0 resources to help educators who work with teens join the Web 2.0 wave.