Hillary's web team was on the ball - it was real time communication, and a different tone than she's used on Twitter in the past. She's finding her voice, online and offline, and it's a nice change for what she's done in the past.
Her final tweet of the night - not in the image but linked in the last paragraph - understood her audience, thanking supporters not just for voting, but for making calls too.
It's a very simple gesture, very well timed as soon as the results came out, and I was impressed by it. Certainly not novel, but for Hillary, it's something to note.
Disclosure: I donated to and voted for Obama.

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are you kidding?
seriously, how do you perceive classiness in those? i'm not understanding; classiness would be in, for once, congratulating barack obama in a meaningful way, as he does her; she has very little class or genuine graciousness