I could be completely wrong about this as I'm using myself as a sample size of 1, but to my knowledge, Advertising Week did a fairly poor job of engaging and reaching out to the blogosphere (which is in of itself quite telling)
To be clear, I'm not solely pointing a finger at the organizers of Advertising Week (I know them well - individually, as well as the associations that prop 'em up), but am including the various companies (MSN and AOL for examples) that put on pomp and ceremony throughout the week, but failed to let anyone know about it.
Put it this way: of all the companies that should know better when it comes to reaching out to mainstream media journalists, surely you know by now that you should be thinking about supplementing this outreach with a social media flavored mix as well? Then again, maybe not.
Of the one event I was involved in i.e. the Firebrand launch, we absolutely reached out to the blogosphere for support and coverage. Other than that, not sure what else was done.