You will see a list of your folders. At the top of the list is the Share Entire Database option.
To share the entire database or a folder, click on the folder icon furthest to the right. If you have already shared it, the folder icon will also have a person's head. If you haven't shared it, there will be a green arrow on the folder icon.
Click on the appropriate folder icon. You'll be asked if you wish to share. Say Yes.
A popup appears with several options for sharing.
Sharing References with Guests
You can follow the same steps listed above for sharing references with those who do not have a RefWorks account. They will still be able to see your references but it will be a read-only file.