An open repository is a place where you can publish your research online and make it freely available to others. Subject specific repositories are often the best place to choose for your research.
open archive of engineering research
A scholarly commons for research
Zenodo is a database where research can be shared. It is funded by CERN and the EU.
Preprint server for biology related research
E-prints in Physics, Maths, Computer Science, Finance, Statistics, Economics, and more.
SocArXiv (social science archive)
Open Anthropology Research Repository