Web Links (archived homepages once maintained by Games Workshop, no longer available under their original address)
http://web.archive.org/web/200210042...ps/shroud.html
http://web.archive.org/web/200210042...oops/lady.html
http://web.archive.org/web/200210050.../ftearers.html
--- material on the Sororitas' participation on Armageddon from GW's campaign website, including letters from and about one of their leaders
http://web.archive.org/web/200710260...sororitas.html
http://web.archive.org/web/200712181.../repentia.html
--- information on Battle Sisters and Repentia from GW's Inquisitor RPG, including a very cool short story of one Sister Anastasia
http://web.archive.org/web/200804111...ainy-infamy/2/
--- some background on fugitive Battle Sister Ephrael Stern, also sheds some more light on where the Sororitas come from
Codex Material (primary sources)
2nd edition Codex Imperialis (contains one of the very few mentions of the Sisters of Battle maintaining their own starships)
2nd edition Codex: Sisters of Battle (also contains extensive background on their organisation, including numbers for the six Major Orders)
3rd edition Codex: Witch Hunters (adds alliance to the Inquisition and confirms that their wargear is equal to that of the Space Marines)
5th edition Codex: Sisters of Battle (as part of White Dwarf #380/381)
Rulebook References (usually just small mentions, but may be nice to know)
1st edition Rulebook, page 268: first mention of the Adepta Sororitas ever, talks a bit about purity control sweeps
3rd edition Rulebook, page 112: very cool/creepy short story about the Sisters' fanatism in regards to flagellantism and self-mortification
5th edition Rulebook, page 120: small mention of the Sisters of Battle and their role for the Imperium
6th edition Rulebook, page 195: very basic but good overview of the Sisters of Battle as an army/faction
Magazine Issues (note: all issue numbers are UK)
White Dwarf #211 - rules to field individual Sister squads as an add-on to Marine and Guard armies, as well as a Codex preview
White Dward #212 - special feature accompanying the release of the 2E Codex, some additional info on the Church Militant
White Dwarf #281 - info bits on the Sororitas Orders active in the 13th Black Crusade on page 47
White Dwarf #292 - Designer's Notes on Codex: Witch Hunters, contains some very interesting developer insight into the faction
White Dwarf #293 - multi-page article "Liber Sororitas", very deep and rare insights into the Adepta Sororitas, very recommended!
White Dwarf #380 - Sisters of Battle 5th edition Codex, part 1
White Dwarf #381 - Sisters of Battle 5th edition Codex, part 2
White Dwarf #382 - Ecclesiarchy missions, accompanied by some nice background on the faction's goals and motivations
White Dwarf #383 - Battle Sister painting guide; page 101 introduced new background on unique characteristics of the different Orders
White Dwarf #384 - two SoB Apocalypse formations: the Repentant Host and Purge Squadrons, on pages 62 and 63
Citadel Journal #49 - article and rules from Andy Hoare about a special Sororitas task force assigned to purge rogue Space Marines Chapters