Where to find lenses online?

I've been searching for a 50mm 1.8G AF-S Nikkor lens online, but it's sold out everywhere. Where can I search next?
(eBay has it, but it's from China. I'd rather avoid international.)

Added (1). I found a refurbished one online at the official Nikon store. Is it ok to purchase refurbished lenses? I'd really appreciate the 2-day-air luxury the Nikon store has.

You can obtain your lens from the following stores.

Digitalrev (digitalrev.com) for $269
Simplyelectronics (simplyelectronics.net) for $265.95 and free shipping
Chatandvision (gb.chatandvision.com) for 173 UK Pounds.
And sale-point (sale-point.com) for 252.15

Use Google Product search.

E-BAY and I have bought a lot from China with no problems.

I like to buy from reputable online stores like B&H Photo, Adorama, or the actual Nikon store.

Amazon, B&H, Adorama. Refurbished products directly from Nikon are 100% safe to buy.