By just about any measure, it's already been a rather remarkable second day of Personal Democracy Forum 2009 in New York City, where we've been hearing directly from some of the people at the white-hot center of tech-empowered political, social, and economic change -- as well as some of the thinkers with the most unique perspectives on that change. And in case there was any question going into the event, the verdict is clear: this conference will be tweeted. Hard. An astonishing 15,000 PdF-tagged tweets have flowed in the last day and a half, coming from more than 2,700 people (which, interestingly, is far more people than the number of folks physically present here in the Jazz at Lincoln Center space).

And you can dive into the full Twitter stream here. Be forewarned, though, that it this point the stream has swelled into an ocean of content. Lucky for us, it's belatedly occurred to me that we can with a few handy-dandy search terms parse out the tweets emanating from particular sessions from this morning's line-up. So, go ahead and catch up on the conversation around what we're learning about innovating from within government that featured the White House's Vivek Kundra (from whom we get our title above), Macon Phillips, and Beth Noveck. Then catch up on the discussion around presentations by State Department's Alec Ross on citizen-centered diplomacy, Facebook's Randi Zuckerberg on social networks and social revolution, Michael Wesch on YouTube culture and authenticity, Mark Pesce on the culture of sharing, Todd Herman on "tak[ing] the lid off" of the Republican Party, and Dan Froomkin on the journalism of accountability.

For a taste of longer coverage, the Wall Street Journal's Marisa Taylor reviews the "battle over broadband," Kundra's unveiling of a new IT spending dashboard was covered by the Washington Post's Kim Hart, Fast Company's Kit Eaton, NextGov's Gautham Nagesh. The Wall Street Journal's Kimberly Chou covers a discussion on the youth vote. And Write Like She Talks' Jill Zimon has been doing good work compiling live blogs of this morning's sessions, and she'll be powering through a number of this afternoon's break-out panels as well. For more coverage, check out what Google News and Google Blog Search turn up about today's events.

(Photo by magnifynet...and, okay, okay, it was take yesterday. Tag your more recent photos with "pdf09," folks)