This is a collection of resources about ui-router, from simple to more complex.
ui-router project on git
Intro video to ui-router (5 mins)
Another intro video to ui-router (first 15 minutes).
A great article about ui-router (more indepth)
In-depth video about ui-router (50 min) + with http://slid.es/timkindberg/ui-router#/
One way to setup authentication in AngularJS
Builds on the article above, but using ui-router
If you have additional suggestions, let me know and I will add them here.