Aside from filtering based on skills/organizations, the search bar can also search titles, project type (employed/open source/personal project/etc), and even does a full text search of the project description (all client-side using lunrjs[1]), which I think becomes useful as you add more and more projects--in particular in an interview scenario where you're discussing projects with someone looking over your shoulder and want to quickly jump to one or another.

1 - http://lunrjs.com/