UX Pin, just released a new tool called, Adele. It lists websites in a grid-like format that allows the list to be filtered and sorted. It shows the type of design system that was used along with any pattern libraries that were used. It was named for Adele Goldberg who worked at XEROX PARC and managed the Systems Concept Lab and eventually developed Smalltalk
Such a great resource. Now I just need to find the time to browse the site.