MrRogue
Boats are Fun
I look at lifehacker daily and found this little firefox extension. What it does is show you a map and info on where a website is located. (Website, but it may not be the location of the actual buisness, but within the same country is usally a safe bet)
https://addons.mozilla.org/firefox/2993/
See exactly where that PayPal scam is being hosted, or check if a vendor you're considering purchasing from is based in your country.
https://addons.mozilla.org/firefox/2993/