1) I'm not sure if this is the original source of this or not, but I started making an effort to move around more after seeing Sitting Is Killing You. I just wish it were available in a more compact form than the giant infographic. (Update: seems to be from Medical Billing & Coding, but their copy is gone. Also, the copy at lifehack org/articles/lifestyle/why-sitting-is-killing-you.html has a higher google rank but those assholes cut off the last slide with the credits and references.)
2) A blog I read linked to this blog post just yesterday:
My journey to standing all day looked like this:
Day One: stood for two hours, and didn't get much work done. Finally sat down and just wanted to cry.
Day Two: basically the same thing as day one for the next week.
Week Two: Things were better.
Month Two: I can now stand for about 6 hours a day, but more importantly I have finally broken the urge to sit down when I need to concentrate on something.
Month Four: I stand all day, and can work effectively now while I stand. I still go home with sore feet and legs.
Month Eight: The soreness is mostly gone and I can stand fine.
Year Two: I can't focus as well when I sit, and my legs/feet rarely feel sore. I've also ditched the anti-fatigue matt.
Year Three: It feels weird, and too loungey, to sit and work.