The only possible problem I have with the password notification is that this looks pretty spoof-able, as well as that a number of sites put their own bars at the bottom of the page (such as for social network aspects or logging in).
When the current IE ActiveX and Chrome password messages pop, I'm fairly confident that they're the real deal, and should be paid attention to.
#11 "If your blog doesn't have comments, is it a blog? I know that Comment Spam is a problem, but don't give up quite yet. A blog without comments is a telephone with no earpiece." (again from your blog)
What about sites that turn comments off on posts after some period of time (especially for a post that is deemed to have enough lasting interest to warrant a short url and as a talking point in a presentation 2+ years later )?
I might be the only one who feels this way, but when I see a blog that does this (excluding items that really don't warrant comments), I feel about the same towards their blog as I do towards one who doesn't enable comments at all.
In both this and the other video/part you specifically called out that you could narrow down the focus of what people talked about or linked to on other social sites (StackOverflow, de.licio.us) but then say "However, I believe category specific feeds ultimately
mean that folks could miss out on interesting stuff, and I figure they want to subscribe to ME, not to a category-subset of me." (from your blog).
Is this really consistent with the rest of your talk? Heck, assuming your blog platform can output category listings and it generates feeds on some sort of listing already, you've got almost everything you need already.