Series of three articles by Fr. William Saunders which compare the Eastern Rites with Roman Catholicism, provide historical developmen, and describes the primary rites.
Freeware has a Melkite calendar from 1960-3000. For each day, it tells you the name and class of the feast (if any), the tone, whether it is a fast day, and suggests a typicon for the Divine Liturgy. Web site requires Java for navigation. Software requires about 5.5M disk space.