The University of Illinois Library provides helpful information regarding copyright such as:
An institutional repository is an online locus for collecting, preserving, and disseminating - in digital form - the intellectual output of an institution, particularly a research institution. OpenDOAR, the The Directory of Open Access Repositories, is an authoritative directory of academic open access repositories that provides a simple repository list.
IDEALS: Illinois Digital Environment for Access to Learning and Scholarship
IDEALS collects, disseminates, and provides persistent and reliable access to the research and scholarship of faculty, staff, and students at the University of Illinois at Urbana-Champaign. Faculty, staff, and graduate students can deposit their research and scholarship - unpublished and, in many cases, published - directly into IDEALS. Departments can use IDEALS to distribute their working papers, technical reports, or other research material. Deposit your work into the University of Illinois' institutional repository so that you can share your work with colleagues and the world!
A work that is published as open access is freely accessible for anyone to read, distribute, reproduce, print, or search on the internet. This open access then helps increase citation frequency as more people can access your research. Check out the Directory of Open Access Journals (DOAJ) to find a journal in your field!