View Access & Edit Access
If you want your site to be 'live' you need to make sure it is 'Public on Web.' Go ahead and click on 'Share' - You have the option of having the site public or limited to a select group of viewers.
To add 'editors' or other 'owners' to your site simply add their gmail or apps address and click save. What is the difference between and editor and an owner?
Editor - can edit content on the pages but not the site layout and design.
Owners - can edit EVERYTHING on the site.
Change your site access to at least Anyone with the Link or Make Public on the Web. Optional - Add editors.