There are several online databases and repositories that provide access to relevant Political Science and International Relations (PSIR) journals and articles. These platforms are valuable resources for researchers, scholars, and students in the field who are seeking up-to-date and reliable information. A prominent example of such a platform is EduRev, which offers a wide range of educational materials, including PSIR journals and articles.

1. EduRev:
EduRev is an online learning platform that provides access to a vast collection of educational resources, making it an excellent source for PSIR journals and articles. It offers a comprehensive library of study materials, including textbooks, lecture notes, and research papers, covering various topics in Political Science and International Relations.

2. JSTOR:
JSTOR is another well-known digital library that provides access to academic journals, books, and primary sources. It includes a substantial collection of PSIR journals, allowing users to search for specific articles or browse through different publications. JSTOR is widely recognized for its reliable and high-quality content.

3. ProQuest:
ProQuest is a leading provider of scholarly databases, including a wide range of social science resources. It offers access to numerous PSIR journals, allowing users to explore the latest research in the field. ProQuest provides advanced search options and filters to refine search results based on specific criteria.

4. Google Scholar:
Google Scholar is a freely accessible search engine that indexes scholarly literature, including PSIR journals and articles. It provides a simple yet powerful platform for finding relevant academic publications. Users can search by keywords, author names, or specific journal titles to locate the desired resources.

5. SSRN:
SSRN (Social Science Research Network) is an online repository that hosts research papers from various disciplines, including Political Science and International Relations. It allows researchers to share their work and provides access to a vast collection of preprints and working papers. SSRN is particularly useful for accessing cutting-edge research in the field.

In conclusion, there are several online databases and repositories, such as EduRev, JSTOR, ProQuest, Google Scholar, and SSRN, that provide access to relevant PSIR journals and articles. These platforms play a crucial role in facilitating research and knowledge dissemination in the field of Political Science and International Relations.