Here is a great example of the transitory nature of Twitter: Right now, Time Magazine is having a little information poll: "@Time - Let's do an informal Twitter poll: Who was the greatest First Lady of the 20th century? Tell us why, in 140 characters, and I'll RT the best" (RT means re-tweet by the way... Twitter has its own language. It took me a while to get it but it's pretty simple really.)
I voted for Hillary, or course! As it stands now, she is in third place with Eleanor Roosevelt in first, followed closely by Jackie O.
So if you haven't joined Twitter yet, do it! And don't forget to follow AllThingsHill!