Been doing that since about 1990. Some call this old school.
Bob
Does anyone know of a cloud (free hopefully) storage service that shares files via links that require a password, like an FTP site?
The ones I look at just take you directly to the link. Encrypting the shared file/folder is not an option.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic