Wikispaces is now offering a domain redirect service. To activate it, login to your Wikispaces wiki and click on the “Settings” link.
Then click on “Domain Redirect” on the left side.
Now before you do anything, read very carefully the text there. The most important points being:
Once processed, you will be unable to switch off the redirect.
and this box that you must check off:
Confirm that you understand that once a redirect is active you will not have access to any data stored in Wikispaces
So when you’re really 100% ready to leave Wikispaces for good, go ahead and do it.