Facebook and Skype collaborating together to come out with video chat in Facebook, and on the other hands scammers are also teaming up to exploit and misuse the video chat integration. Here is how you get a victim of this scam.
There is a process to install the video chat plugin and enable video chat in facebook,
The service is working for some people and to some it shows the graphic below, notifying me that “video calling will be available soon, please check back later.”
And after that the scam appears on your wall, to 'enable video chat'.
If you click on the link, it will ask you to access your basic information, and when you allow it, it doesn't allow you to do video chat, but simply tries to get you to fill out surveys so its evil creators can collect referral fees. Worse, it exposes your friends to the same trick.