Old High German

Wikipedia Article on Old High German
Old High German Texts: Chronological (University of Newcastle Upon Tyne)
AN OLD HIGH GERMAN PRIMER WITH GRAMMAR, NOTES, AND GLOSSARY BY JOSEPH WRIGHT, Ph.D., D.C.L., LL.D., Litt.D
A Brief Collection of Old High German
Althochdeutsche Texte im Internet
Projekt: Chronologisches Wšrterbuch des Deutschen
ALTHOCHDEUTSCHE TEXTE
Germanic Linguistic and Language links , Elizabeth J. Pyatt
University of Victoria: Online course