The Electronic Text Corpus of Sumerian Literature (ETCSL) is an online digital library of texts and translations of Sumerian literature that was created by a now-completed project based at the Oriental Institute of the University of Oxford.
[1] This project's website contains "Sumerian text, English prose translation and bibliographical information" for "over 400 literary works composed in the Sumerian language in ancient Mesopotamia (modern Iraq) during the late third and early second millennia BCE."
It is both browsable and searchable and includes transliterations, composite texts, a bibliography of Sumerian literature and a guide to spelling conventions for proper nouns and literary forms.
[1] The project was founded by Jeremy Black in 1997 and is based at the Oriental Institute of the University of Oxford.
Contributors to the project have included Graham Cunningham, Eleanor Robson, Gabor Zolyomi, Miguel Civil, Bendt Alster, Joachim Krecher and Piotr Michalowski.