You retain your copyright when you submit items into IDEALS. You give the University permission to distribute and preserve your submission. For more information see the Copyright and Intellectual Property Policy and the Deposit Agreement.
It depends. Some publishers give their authors permission to deposit published articles into repositories like IDEALS. Your original copyright agreement may specify whether you can deposit work in an institutional repository like IDEALS. You can also ask your publisher whether you can submit your work into the institutional repository (IDEALS). For a list of publisher policies, the SHERPA/RoMEO list of Publisher Copyright Policies and Self-Archiving is currently the most definitive source.
When you publish, you can negotiate to submit your work to IDEALS by using the CIC Author Addendum to negotiate for retention of these rights. You can also negotiate directly with the publisher. SPARC offers resources for authors, as does the Scholarly Commons at the U of I. Please see our Copyright and Intellectual Property Policy for more information as well.
It depends. Some publishers will not accept material that has been made available elsewhere - even if it has not been formally published. This is slowly changing, but we do recommend checking with potential publishers to ensure that you can safely deposit a preprint, for example, into IDEALS. The SHERPA/RoMEO list of Publisher Copyright Policies and Self-Archiving is the most definitive list of publisher policies at the current time.