Best way to share game prototypes with friends?

I’ve been trying to find the best way to upload something roughly a gigabyte in size so that my friends can easily download it and try it out. Security isn’t important as I don’t really care if it gets into the wrong hands. Are there any methods you would recommend i.e. google drive, skydrive, github?

I would recommend you gdrive, because then they can either just go into the gdrive folder or you can send them a download link.