It's kinda useless, though. They give you the most general of the targeting - all mine say stuff like "men in the United States" when they've clearly got additional very specific stuff enabled.
So, as an example, I just got an ad for a "personalized women's fashion" retailer (I'm male, and Facebook knows that for certain), that stated "You're seeing this ad because eShakti wants to reach people aged 23 to 56 who live or have recently been in the United States. This is information based on your Facebook profile and where you've connected to the Internet."
Now, I'm fairly certain that they're not casting that wide a net. Those filters may be in their targeting specs, but I can guarantee you there are more specific than that, especially as it started showing up after my wife went looking for women's dresses recently.
