It took me a minute to find where I could enter comments because it's the same color as the URL info that comes in automatically, and is located in the same section. I would move it into the green area. However, the green area is a bit confusing.... is this info that I enter just for tagging sake? Where can I enter info just for someone I want to send the bookmark? I think there should be one section where the user can "enter" any details, but then segregate or make it more obvious what info is for "general" tagging purposes and what info is "just for receiver."