For a Dynamic Website, this report shows you where the visitors to your website came from. For linked sites, it only applies to your boomtime linked pages.
Referrer of "(typed in directly)" means they typed in your website address directly, while "google.com" means they did a search on Google, or clicked on Google Adwords to find your site.
This is number of visitors to your website. If the same person comes back to your website more than an hour later, they're counted as another. "Vistors %" shows the percentage that referrer makes up of your total visitors.
This is the number of pages, on average, that each visitor looked at on your website.
The number of gift certificates purchased by visitors who came from this referrer.
The number of appointments requested by visitors from this referrer.
The percentage of visitors who purchased a GC or requested an appointment.