The new Institutional Repository for IT Sligo and all other IoTs is Research@THEA (previously known as Cual). It can be searched by author, title, subject, department, supervisor and IoT School and within that, by collection (theses, articles, conferences).
Some undergraduate projects are available in pdf on the library website: see below.
RIAN.ie Search the Institutional Repositories of the seven Irish University Libraries and some IoTs.
OpenDoar Open Doar is a directory of repositories and their contents.
Openaire This has superseded Driver as a European Portal of Digital Repositories for scientific output.
Digital Commons Network Provides access to full-text scholarly articles and other research worldwide colleges and universities. This resource is curated by institute librarians and includes much the same content as an IR does.
Trove Australian Research Repository
UMI Proquest We don't have a subscription to this product, but it is a good way for researchers to see if there has been something published in your research area.