Everything in your account is private and highly secured unless you choose to share specific items with friends or even groups of friends. They can access this information through a free KeepandShare account and you'll have the plus of being able to track who visits your information - helping you to keep in touch!
KeepandShare has a built-in, unchangeable share group called "public." Any information on which you set the share group to "public" will be visible to everyone, even if they do not have a KeepandShare account. All they will need to do is to visit your share page. They can do this by simply typing "www.johnsmith.KeepandShare.com" into a browser address bar and they will be shown all of your "public" shares (where 'johnsmith' is your KeepandShare user name).