http://www.catholicapologetics.net/apolo_48.htm#1b though history.
http://www.carm.org/heresy.htm heresies review... good!
http://www.adrem-ph.net/moreheresies.html catholic, protestant, philosophy, date of your church.
http://www.roman-empire.net/religion/heresy.html good
http://www.factquote.com/article/Heresy
http://www.praisechapelsd.com/#Christian_Heresies
http://dennis.psicop-zone.com/
http://www.christianitytoday.com/ch/51h/51h036.html
http://www.letusreason.org/Pent38.htm what is heresy
http://www.catholic.com/library/great_heresies.asp Catholic
http://latter-rain.com/theology/heresy.htm heresy
http://www.christianitytoday.com/history/newsletter/2003/nov7.html
http://www.apologeticsindex.org/h27.html heresies

http://www.ntcanon.org/Arianism.shtml
http://www.jesustheheresy.com/ncreed.html Nicene Creed, 325, Arian heresy
http://www.ntcanon.org/Montanism.shtml

http://www.newadvent.org/cathen/04423f.htm Councils of the Church
http://www.newadvent.org/library/almanac_14388a.htm
http://www.piar.hu/councils/~index.htm
http://www.christianitytoday.com/ch/51h/51h011.html Council of Nicea
http://www.catholicapologetics.org/ap040400.htm good
http://www.christusrex.org/www1/CDHN/coun0.html full report
http://www.christusrex.org/www1/CDHN/v1.html II Vatican Council
http://www.cin.org/vatiidoc.html Vatican Council II    http://www.cin.org/v2litur.html   http://www.rc.net/rcchurch/vatican2/

http://www.geocities.com/Heartland/Woods/2311/communion.html Ecumenism
http://www.stmark-la.com/book.html Orthox and Catholics... Orthodox!
http://en.wikipedia.org/wiki/Eastern_Orthodoxy#The_Great_Schism Othodox, wikipedia
http://en.wikipedia.org/wiki/History_of_Christianity excommunions east and west, wikipedia