Allow Anyone to Upload Files Directly to Your Drive
"Have you ever been in the situation when you needed someone to share a digital file with you but the file is too large to send as an email attachment? Sharing that file with you in Google Drive is a great alternative, but what happens if the person does not have a Gmail or GAFE account?
Well, it turns out there is a script that automatically provides you with a URL that allows any user to upload a file to a designated folder in your Google Drive. The beauty of this script is that anyone can send the file to your Google Drive without signing in to a Google account! Here is how to set it up (no scripting ability required)."