Yom Kippur (Subscribe)
Links
Yom Kippur Journal
http://www.vbm-torah.org/yk.htm
Collection of articles about Yom Kippur, from the Virtual Beit Midrash of Yeshivat Har Etzion.
Yom Kippur Guide
http://www.chabad.org/holidays/JewishNewYear/template.asp?AID=4687
Laws, customs and complete study. By Chabad.org.