AtmaDharma.org
Well organised (and constantly expanding) treasure-chest of original Jain literature translated into various modern languages, along with information about the site, objectives and its authors. This reference library (of shastras-books such as Samaysaar, Moksh Marg Prakashak, Chha Dhala, Principles of Jainism, etc.) has been structured to aid navigation for beginners as well as people more familiar with Jainism.