Northern Crusades Against the Last Pagans of Europe.
- Background information on the 13th century crusades against the Baltic Pagans. Part of a site promoting novels set in the period.
- http://users.erols.com/kazmara/

Cathar Crusades: What was the Albigensian Crusade
- Description of and background of the thirteenth century war.
- http://languedoc-france.info/1206_crusade.htm

The Crusades
- The full text of History of the Christian Church by Henry C. Sheldon, 1895.
- http://www.edwardtbabinski.us/sheldon/crusades.html

Warfare During The Crusades
- A collection of translations of primary source material, articles and reviews on the period.
- http://www.deremilitari.org/resources/categories/crusadeswarfare.htm

The Children's Crusade
- Translated document.
- http://www.fordham.edu/halsall/source/1212pueri.html

Crusades: Truth and Black Legend
- Italian writer Vittorio Messori defends the crusaders from charges levelled at them during the Enlightenment.
- http://www.ewtn.com/library/CHISTORY/ZCRUSADE.HTM

The Crusading Era: 1095-1291
- A brief overview and list of the wars of the Crusades.
- http://campus.northpark.edu/history/WebChron/WestEurope/CrusadeEra.CP.html

The First Crusade
- One of a series of lectures for a medieval survey by Lynn H. Nelson
- http://the-orb.net/textbooks/nelson/first_crusade.html

The Crusades in the Levant (1097-1291)
- Lengthy overview of the whole crusade period.
- http://xenophongroup.com/montjoie/crusade2.htm

The Peaceful Liberation of the Holy Places in the XIV Century
- An online book on how the Frankish clergy returned to the Holy Places in the Fourteenth Century for the purpose of maintaining the Sacred Sites and celebrating the Roman Liturgy. A substantial part of the book covers the period of the Crusades.
- http://www.christusrex.org/www2/liberation/

The Holy Land of the Crusaders
- Pictures and information about churches and other buildings built by the crusaders.
- http://www.christusrex.org/www1/ofm/crus/CRUmain.html

The Real History Of The Crusades
- A historian argues that the Crusades were justified.
- http://www.catholicculture.org/docs/doc_view.cfm?recnum=4461

Society for the Study of the Crusades and the Latin East
- Functions chiefly to enable members to learn about current work being done in the field of crusading history. The Society also organizes a major international conference every four years.
- http://freespace.virgin.net/nigel.nicholson/SSCLE/SSCLEhome.html

Crusade
- From Wikipedia, the open-content encyclopedia. Covers historical background and context, as well as the First, Second, Third, Fourth, Fifth, Sixth, Seventh, Eight, and Ninth Crusades, as well as the Albigensian Crusade, Children's Crusade, and crusades in
- http://en.wikipedia.org/wiki/Crusade

A History of the Crusades
- A digital facsimile of six volumes published by the University of Wisconsin-Madison Libraries covering the history of the period and its impact on Europe and the Near East.
- http://libtext.library.wisc.edu/HistCrusades/

Literature of the Crusades
- A categorized listing of links to translations of original source material on the Crusades.
- http://ksumail.kennesaw.edu/~bstevens/crusadeslit.htm

International Congress: The Fourth Crusade and its Consequences
- Introduction, program and other details. Organized by the Academy of Athens, in Athens, Greece, in March 2004.
- http://www.cc.uoa.gr/4thcrusade

The First Crusade and the Jews of Western Europe
- A history and understanding of the effect of the First Crusade on European Jewry
- http://www.math.wustl.edu/~msh210/crusade/

Internet Medieval Sourcebook - The Crusades
- A collection of contemporary accounts of the crusades.
- http://www.fordham.edu/halsall/sbook1k.html

The Crusades and Mediæval Information Links.
- A page with diverse links to crusades-related information.
- http://www.homeusers.prestel.co.uk/church/chivalry/crusades.htm

Medieval Crusades
- A history of the crusades and crusaders from Europe to the Levant. Written for students.
- http://www.medievalcrusades.com/

Crusades
- Presents the Catholic perspective on the Crusades.
- http://www.newadvent.org/cathen/04543c.htm

The Society for the Study of the Crusades and the Latin East
- SSCLE is an organization of scholars interested in studying and understanding the crusade movement along with its effects on society then, and afterward.
- http://people.westminstercollege.edu/faculty/mmarkowski/ssclehome.html