Folders and tags shouldn't be mutually exclusive. Folders allow for a simple hierarchical navigation option and allow you to preserve "structure" when round-tr

Folders and tags shouldn't be mutually exclusive. Folders allow for a simple hierarchical navigation option and allow you to preserve "structure" when round-tripping resources the rely on nested folders in and out of a cloud service. It allows for strong naming and namespaces. Tags can be user-supplied, crowd-supplied, or even through AI/expert system, and allow for cross-cutting exploration when involving stuff that can't be indexed like text. (Although even documents benefit from tags to ease finding them again when there's a haystack) Tags require more effort to maintain but are essential when you are dealing with a complex collection.