The "http:// has been replaced by an icon. I suspect it's supposed to be a small planet earth icon, but the color choice makes it look like the moon, and the continent placement makes it look like a squinty smiley face when viewed from a few feet away.
Icons.. feh.
The author suggests replacing the string of text with an icon, like RSS. But the RSS icon quickly went from "standard" to "indecipherable clusterfuck" in practice. http://images.google.com/images?q=rss%20icons