By default, personal spaces are not made publicly viewable. To make personal spaces available to anyone without logging into the wiki (such as the case when you want to share it in an email or blog post for review), you need to make modifications to the default permissions.
To make the changes, first login to the wiki. After logging in, you can then mouse over your name in the upper-right corner of the wiki where you'll be presented with a drop-down menu. Within the menu, select Personal Space. After arriving in your personal space, hover over Browse which is also in the upper-right corner of the wiki (to the left of your name) where you'll be presented with a menu of options. Within the menu, select Space Admin near the bottom of the list.
Once you've entered the Space Admin you will have several options on the left hand side. Select Permissions under the Security header. Once you've entered the Space Permissions page, you can modify the groups and users who have access to various aspects of your personal space. Near the bottom you will see Anonymous Access where the default is to not allow access to anything in your personal space (including viewing pages) to those not logged into the wiki. In order to make the pages viewable to anonymous users, we need to Edit Permissions under the Anonymous Access section.
After selecting Edit Permissions the page will enable check boxes so you can modify the permissions. Select View under the Anonymous Access section and make any further changes you wish. After you're done, select Save All.
Links to pages in your personal space will now be available to those not logged into the wiki.