Index Verborum
- Searchable database of Luther's German writings from 1516-1525, showing frequency and location of words used in the original texts.
- http://luther.bc.edu/

Meditations: Ein Deutsch Theologia
- Excerpts from Martin Luther's devotional Ein Deutsch Theologia.
- http://key2marketing.net/obp/martin-luther-meditations/martin-luther-meditations-1.htm

Mark V Publications Home Page
- Original translations from Luther from snippets of devotional materials published in German in the 19th century and from the Festival Sermon collections from Luther's Church Postils translated from a 1584 manuscript.
- http://markvpublications.com

Martin Luther's Sermons
- Annotated index and texts of one hundred works from the John Nicholas Lenker 1905 translation of the Church Postil.
- http://www.orlutheran.com/mlserms.html

Luther and the Biblical Languages
- An excerpt from: "To the Councilmen of All Cities in Germany That They Establish and Maintain Christian Schools", 1524.
- http://faculty.bbc.edu/rdecker/luther.htm

An Open Letter on Translating
- Written to his adversaries concerning their comments on his translation of the Bible into German.
- http://www.worldwideschool.org/library/books/relg/christiantheology/AnOpenLetteronTranslating/toc.html

Disputation of Doctor Martin Luther on the Power and Efficacy of Indulgences
- Latin with English translation by Spaeth et al. in HTML. Includes internal search engine.
- http://www.worldwideschool.org/library/books/relg/christiantheology/DisputationofDoctorMartinLuther/toc.html

Concerning Christian Liberty
- R.S. Grignon translation of the essay in HTML. Includes internal search engine.
- http://www.worldwideschool.org/library/books/relg/christiantheology/ConcerningChristianLiberty/toc.html

A Treatise on Good Works
- In HTML, in chapter sections, at World Wide School. [allows large print viewing even on crippled browsers.]
- http://www.worldwideschool.org/library/books/relg/christiantheology/ATreatiseonGoodWorks/toc.html

On the Freedom of a Christian
- R.S. Grignon translation (Harvard Classics edition). Available in plain text and HTML.
- http://www.ctsfw.edu/etext/luther/freedom/

The German Mass and Order of Divine Service
- The 1911 translation of the 1526 Deutsche Messe with preface from Luther telling why he wrote it, intended use, and various other rites and options for worship.
- http://history.hanover.edu/texts/luthserv.html

Large Catechism
- Complete text of the Bente and Dau translation from the Concordia Triglotta. Linked index to five major divisions plus individual Commandments, articles, and petitions. Links to other formats, including RTF.
- http://www.ccel.org/l/luther/large_cat/large_catechism.htm

Letter to John Staupitz
- English translation of message sent to his Augustinian supervisor concerning the posting and aftermath of the 95 Theses.
- http://www.augustana.edu/religion/lutherproject/95THESES/letter%20to%20staupitz.htm

Address to the Christian Nobility
- Essay from 1520 teaches that all believers are in the spiritual estate, clergy are not the masters of Scripture, and Pope is not master of the Church if he contradicts the Bible.
- http://history.hanover.edu/texts/luthad.html

The Table Talk of Martin Luther
- English translation of the reformer's Colloquia Mensalia, or Divine Discourses at his Table by William Hazlitt, from the John Aurifaber collection of 1569.
- http://www.reformed.org/documents/Table_talk/table_talk.html

Letter to the Archbishop of Mainz, 1517
- Entreaty by Martin Luther concerning the sale of indulgences. Shows his stage of theological development through his arguments.
- http://www.fordham.edu/halsall/source/lutherltr-indulgences.html