Wicliffe and His Times - Book 2 of Wylie's History of Protestantism, with an excellent history of Wycliffe and his influence on the Reformation. - http://www.doctrine.org/history/HPv1b2.htm
Roots of the Protestant Reformation - Part III of this site discusses the theological influences of Wycliffe, Hus and Erasmus on the later Reformers. - http://www.sundayschoolcourses.com/reform/reform.htm
The Pre-Reformation Movements - A comprehensive presentation of the people and movements which anticipated the ideas of the Reformation: The Devotio Moderna (teachings of the Brethren of the Common Life), John Wycliffe and the Lollards, Jan Hus and also the Waldenses. - http://www.reformiert-online.net:8080/t/eng/bildung/grundkurs/gesch/lek1/index.jsp
The Pre Reformation Era - Links to the Waldenses, Wycliffe, John Huss and the Lollards. - http://www.historicist.com/history/preref.htm
John Huss and the Hussite Wars - Book 3 of Wylie's History of Protestantism centering on Huss and his influence on the Reformation. - http://www.doctrine.org/history/HPv1b3.htm