UPDATE: I forgot someone on this very brief list!
Ben Nadel has been writing AngularJS articles for…since forever (2012) it looks like and in great depth too. He wrote a good article covering performance of $scope.evalAsync and even wrote his own replacement for $resource/ngResource called httpi.
1. Todd Motto
He also has a nice article on creating an AngularJS directive from one of your existing plugins/scripts.
2. Year of Moo
They don’t post articles about AngularJS often but when they do, they’re full-on guides that cover a lot and contain many useful ideas.
One of their most popular articles is about unit testing, end2end testing and midway/integration testing with AngularJS. This article is the standard reference that is linked to everywhere whenever unit testing in AngularJS is discussed.
3. Misko Hevery
More Places To Get Your AngularJS Fix!
Overall it’s hard to find out who’s the most influential, there are more and more people checking out AngularJS every day and it’s a decentralized community, you can find great information in all sorts of places.