Mean development

Directory Structure

app/ Server side code (node)

app/controllers - server side logic
app/views - server side views (You probably don't need to put anything else if your starting)
app/models - db

public/ Client side code (angular)

public/js - client side logic
public/js/services - Angular services are use to typicall communicate with remote rest apis and other services. 
public/css - clients side looks
public/lib - 3rd party libraries built typically through bower

How to add a new page

1. Decide about how to call it and set the route