Reference
Here is including the sites about Christianity.
Catholic
The Catholic Bishops' Conference of Japan The Roman Catholic Church of Vatican Holy Apostolic Catholic Assyrian Church of the East The Churches in Nagasaki(Japanese)Nagasaki is the finest Christian area in Japan.
Orthodox
The Orthodox Church in Japan The Ecumenical Patriarchate of Constantinople Mount Athos The Greek Orthodox The Russian Orthodox The Moscow Patriarchate The Armenian Apostolic Church The Armenian Church The Armenian Orthodox Patriarchate (Convent) of St. James (Jerusalem) Coptic Orthodox Church Network The Syriac Orthodox ChurchProtestant
United Church of Christ in Japan(Not official) Church of Christ in Japan The Lutheran World FederationAcademic organizations
Catholic Encyclopedia
The site of Catholic Encyclopedia which the Catholic Church publishes. The description is fair although it is from Catholic.
The BBC Christianity
The British Broadcasting Corporation's official site.
WIMA: Werner Icking Music Archive
A nonprofit music data site. Numerous files (midi, mp3, pdf) are downloadable according to composers.
Wikipedia-Christianity
Very convenient but some descriptions are not good.
Christian Classics Ethereal Library
We can read many Bible translations and the documents by the Church Fathers. Operated by the Calvin College.
KJV
We can read and search the Bible King James Version.
Internet Sacred Text Archive
We can read many Christian and non-Christian texts.
Internet Medieval
Sourcebook
We can read many medieval Christian and non-Christian texts.
Byzantium
Very good for Byzantine studies.
Online Etimology Dictionary
Very good and easy.
Farsinet.com
This is a commercial site, but has much religious information of Iranian Christianity.
Museums
The British Museum Vatican Museums(from Vatican Home)
"The Transfiguration of Jesus Christ" by Raphaello is perfectly noble.You can watch thoroughly the Michelangelo's fresco in the Capella Sistina by not standing in the center of the chapel, but sitting on the corner with opera glasses.The sculptures of the Greco-Roman period are also the highlights.
The Uffizi Gallery (Galleria degli Uffizi )
We merely sigh at the sequence of the splendid Christianian arts in the Italian Renaissance : from Giotto's "Ognissanti Madonna", Lippi's "Madonna in Green" and to Michelangelo's "Doni Tondo of the Holy Family".
The Athens Byzantine And Christian Museum
Louvre Museum