When somebody comes to your share page they are shown only the items they are allowed to see.
To allow your share page visitors to see some (or all) of your shared information, you must set the sharing on your documents, calendars, files, photo blogs etc. by using the 'Share With' controls. You can also set sharing on an entire folder at-a-time.
Since all information in your account is private by default, when others come to your share page they are not shown any information until you have either shared it with their username or shared it with the 'public'.
Then, when they come to your share page , they will be shown links to these items.
