Maybe I'm just off-base, but I'd consider all of those off-topic for SO. It's not a programming or programming tools question, it's a "how does Googlebot work?" question.
The knowledge would certainly be useful to many people, but it is outside of SO's scope as it is defined.
Don't you think that implementing the Google crawling scheme [1] (i.e. returning a snapshot of an Ajax application) is a programming or programming tools question?
The knowledge would certainly be useful to many people, but it is outside of SO's scope as it is defined.