Every single one of these sites is fake. Do not use
Fake in what way? Lol
I use them everyday and, if they are not empty or temporarily down for some reason, I get a small amount of bitcoins showing up in my wallet.
If you have had a problem with any of them you will need to be more specific about what you encountered.
If a site shuts down or stops giving away "free" bitcoins the OP will be updated to show this.
Don't listen to this guy, the sites do not give you anything for free.