To get the most out of the iPhoto-Facebook connection, it helps to understand a couple of essential concepts.
Getting set up. When you publish from iPhoto to Facebook for the first time, you need to enter the email address and password that you use to log in to Facebook.
Faces information. Facebook can notify people via email when you upload photos containing them. This works nicely with the Faces feature in iPhoto—if you set it up to begin with.
The process begins at the Faces corkboard. Select the tile of the person, then click the Info button at the bottom of the iPhoto window. Type the person’s full name and ...