The fake video sharing website "www.greatestvideoscollection.com" is a Facebook "like" scam. This scam will attempt to trick you into 'liking' the fake video sharing website: "www.greatestvideoscollection.com". And, sharing anything on this website or giving their Facebook applications access to your account will only help to spread this scam to your Facebook friends.
For more information about the fake video sharing website, click here. Never share a video in order to view it. This is how scammers trick Facebook users into spreaing their scams to other Facebook users.