Here is their mainpage info:
Welcome to the Encyclopedia Mythica
Please enter the award-winning internet encyclopedia of mythology, folklore, and religion. Here you will find everything from A-gskw to Zveda Vechanyaya, with plenty in between.
To bring our entities to life, we have created an image gallery, where you will find hundreds of images of all kinds of deities, heroes, and strange creatures of every description.
The encyclopedia will serve the serious researcher, the student, and the casual reader with equal success. Come in and enjoy! Think mythology, think EM!