[bryanrasmussen]

I guess #3 explains my confusion, as whenever I use a screenreader it's for testing and I just tab through.

I suppose each screen reader then has its own hotkey shortcuts? Do you know of any resource that puts shortcuts of most popular screen readers together?

[mwcampbell]

If you happen to be using Windows, Narrator has a well-written tutorial (no, I didn't write it) that goes into the most common shortcuts, and you can get a complete list with Narrator+F1 (the "Narrator" key is either Caps Lock or Insert). I believe VoiceOver on Mac also has a tutorial.