Fire
Concept of Djinn in Islam, Jinn, Jinn, Jinn, Jinn and the City of the Pillars, Jinn: According to Quran and Sunnah, Jinn: Essay on Demons, Jinni
Alice Bailey & Djwhal Khul - A Treatise on Cos
Article on some elementals and how they relate to humankind.
Devas, Elementals and Nature Spirits
Describes various types of spirit beings.
Elemental
From Wikipedia. A brief look at the different types of elementals.
Elementals
An overview of the elementals of earth, air, water and fire.
Elementals
Brief article on the four main types of elementals.
Elements and Elementals
Comprehensive article with a Pagan bias on the elements and elementals.
Nymph
From Wikipedia. Article on nymphs and related spiritual beings.
Working With Elementals
Discusses how to work with the various elementals.