I used the link in this post the day it was published but didnt get my key. Today my friend gave me this link http://www.geforce.com/geforce-the-crew-beta-key-give-away And guess what, received my beta key in 1 minute after submiting the application (he did as well). Now I am downloading 15.5gb of content...
However file "crew.exe" or whatever it was came up as a treath on my Avast antivirus. Since its from ubisoft I dont believe they would spread malware this way so I just reported it as false detection. Hope it will work