Hi, Abstract Idea,
Here's another that will quickly provide "oodles" of diagramming information and resources: Diagramming Sentences
Coupled with the Commnet site that Frank provided, you should be in business. I give my students a booklet with the diagrams from the following two links: Diagramming Sentences
Then I begin by teaching Moutoux's sentences:
Moutoux's "basics" take me about nine weeks. As we diagram, I teach grammar, usage, and mechanics, which also brings us to a quarter of syntax.
Let me know what you think.