For Consideration: Bells is thinking of a Let's Play.

[A Zarkin' Frood]

1. That depends on the game. Really. If there's room for audience interaction, sure, why not. Even if it's just the name of a character or something. If you think it's possible to include the audience in shaping the course of whatever game you're playing you should probably do it.

2. I prefer live narration. But you gotta see what works best for you. If you're having a hard time coming up with stuff to say while playing you should maybe consider doing the commentary afterwards, or maybe get a second guy to help you out.

3. All of those.

4. I'd probably cut some stuff out, so my videos won't get too long. But I generally think it's best to show as much as possible. Unless it's reeeally boring.

5. That depends on the game again. If 100% is achievable then go for it otherwise just play through the game. Maybe try to show some easter eggs or other stuff that's easily missed. Or play with some sort of self-imposed challenge, like using one particular weapon or whatever.

(6) There are sites that let you upload videos longer than ten minutes.

(7) Yeah, it's best to record in advance, not only to have updates handy (which I wouldn't hold back) but to see whether you actually can provide at least a mildly entertaining Let's Play.

EDIT: It seems I was too slow.