Dwarf Planets Eris
You have found the way to Eris on Dwarf Planets:
New Planet - Information about the object, its discovery, its place in the solar system and ongoing research, by its discoverer, Michael Brown.
The Tenth Planet - An ongoing series of articles in weblog format about the discovery and classification of the object unoficially called Xena.
Wikipedia - Eris (Dwarf Planet) - Article describes the discovery and characteristics of the object and its place in the solar system. Help build the largest human-edited directory on the web.