This article presents the Open Access publishing experience of researchers in an academic research institution, in a developing country, Trinidad and Tobago, namely at the University of the West Indies (UWI) St. Augustine Campus. It considers UWI researchers' knowledge of Open Access, their access to the scholarly literature, Open Access Archives/Repositories at UWI and related issues of Research and Library funding and Information Communication Technology (ICT) Infrastructure/Internet connectivity. The article concludes that whilst Open Access publishing yields some obvious and well-documented benefits for developing country researchers, including free access to research articles and increased impact and visibility of “published” Open Access articles, there are some disincentives that militate against developing country researchers fully contributing to the global body of knowledge via Open Access. It finds that Open Access Journals are beneficial for scholars who consume information but are of little benefit for developing country scholars wanting to publish in these journals because of the high cost of page charges. Inadequate and unreliable ICT infrastructure and Internet connectivity also often limit access to information. It concludes that because of technical, financial, human and infrastructural limitations, Open Access via the Green Road of self-archiving is also often not an option for developing country researchers. These researchers are therefore unable to reap the real benefits, of making their research Open Access, that of increased impact and visibility.This study is to develop and evaluate methods and instruments for assessing the usability of digital libraries. It discusses the dimensions of usability, what methods have been applied in evaluating usability of digital libraries, their applicability, and criteria. It is found in the study that there exists an interlocking relationship among effectiveness, efficiency, and satisfaction. It provides operational criteria for effectiveness, efficiency, satisfaction, and learnability. It discovers users' criteria on ”ease of use,” ”organization of information,” ”terminology and labeling,” ”visual attractiveness,” and ”mistake recovery.” Common causes of ”user lostness” were found. ”Click cost” was examined.