Yeah, if you didnt know much about security on the internet, please do check out some Facebook looklikes make sure you dont fall into it.
Do remember that Facebook will never ask you download anything, except for flash player or java, even if they asks you to do so, it will also bring you to the adobe / sun microsystems site.
If you dont use Facebook at all, this is totally a scam, if you do use Facebook here is some helpful tips on how to combat lookalikes:
Let me show you an example of a look like site, which is obviously fake:

Click here for a bigger picture for this phishing website.
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Here is a few steps to see whether this site is fake or not:
1) Check the Address Bar!

Yes! Make sure it links!
2) Installing Additional Stuff

Facebook won’t asks you to download additional stuff unless you dont have Java or Adobe Flash installed, and even if you download something, there will be a DirectX bar signed by Adobe or Java, or it should direct you to adobe.com website or java.com.
So this is trying to install something on your computer, which is probably an malware or spyware
3) Your Friend’s to your rescue!

If you have quite a few friends on Facebook, they must have upload some Facebook Videos, so check it out and see whether it telly’s.
4) Facebook’s doesnt use banners!

5) Facebook’s Applications float bar

The Facebook bar should ‘float’
WRAPUP:

Keep up, keep out and keep checking and update yourself and your antivirus software to keep yourself safe from the net!
A good antivirus really helps, consider investing in good solutions to protect yourself:

An example of my current ESET Nod32 Antivirus.
Jeremy

