[Digital Jedi]

There's a paraphrased expression that some folks in my community use that says "Repetition is the mother of Retention". When visiting a website for the first time, possibly as just a fluke or from a search, repetition of the site's name will help a user remember where it was when he read that thing, article, saw that picture, or what have you, than if he just saw it once at the top of the page. You're regular users certainly don't need the reminder, but happenstance users will likely not even look in the address bar, and only glance at the title once or twice. It's a memory tactic, basically, and can help aid in that random user remembering where to go next time.