German History in Documents and Images (GHDI) is a comprehensive collection of original historical materials documenting German history from the beginning of the early modern period to the present. The most significant section for our use is "From the Reformation to the Thirty Years War (1500-1648)," which includes a number of sources from the Peasants Revolt and Anabaptism.
“This translation of the Kunstbuch is based on the critical German edition of the original text, the 2007 Briefe und Schriften oberdeutscher Taüfer 1527-1555.”–Editor’s pref.
Global Anabaptist Wiki provides full text of confessions of faith from the sixteenth century to the present and also position papers on specific issues from various Mennonite denominations.
Articles related to Anabaptism
These texts have been used in the AMBS Anabaptist History and Theology course.