Linguistics
— Ancient languages —
LiBER - Linear B documents from Knossos, Mycenae, Tiryns, and Midea
Marcion - software for studying Gnostic and early Christian texts in ancient languages
Oracc - annotated and open corpus of cuneiform
The Pennsylvania Sumerian Dictionary - exactly what it sounds like
— Indigenous languages —
Lushootseed - website on the Lushootseed language, run by the Tulalip Tribes of Washington
Lushootseed Research - Vi "taqʷšəblu" Hilbert's (Upper Skagit) organization for teaching Lushootseed
Zuni Language Materials Collection - digitized materials for Zuni language learning from the Zuni Public School District and University of New Mexico Libraries (Some of this information is sensitive and may not be translated)
— Sign languages —
ASLU - American Sign Language dictionary and curricula