Why can't other people see my site?
In Notanant you can set permission levels for the visibility of your site. Check that your site is 'online' first by using Edit Front Page at the home page of your site.
Then check site permissions. To change the visibility to the public go to 'Site Settings', then 'Permissions'. Make sure the public permissions for sites and information centres are set to 'read only' - this allows other people to have access to see your site.
If you only want to allow a select group of people to see your site, you can use a Guest username and password (also in 'Permissions') which can be sent out. When people log-in they will automatically see your site.
Alternatively for a fully private site you can add members, then when members log-in they will automatically see that they have access to your site.