Because my research is related to user interfaces, I thought it’d be a nice idea to create a Pinterest board in order to start collecting UI/UX samples. Nevertheless, colleagues have showed me this cool UI pattern libraries, whose content is great for both practitioners and researchers. Therefore, I’ll use this post to create a list for these online libraries. In case you know about a patterns library to add, please, let me know, or feel free to post its URL below. Thanks in advance!