Devas, Elementals and Nature Spirits: Describes various types of spirit beings.
Elemental: From Wikipedia. A brief look at the different types of elementals.
Elementals: Reference guide to Elementals.
Elementals: Elementals and magick.
Elementals: Brief article on the four main types of elementals.
Elements and Elementals: Comprehensive article with a Pagan bias on the elements and elementals.
Energy, Elements, and Elementals: Article discusses these topics.
Nymph: From Wikipedia. Article on nymphs and related spiritual beings.
Working With Elementals: Discusses how to work with the various elementals.