I only tweet work related things from my personal account that are actually cool- a big win, a major new announcement, or something that I'm super excited about. For example I did a webinar today with one of our partners for over 100 global attendees, no small feat, and the culmination of a lot of work. It went out on my personal twitter account, and the company one.

So what's the rule of thumb? I'm going to say, is this REALLY important? Generally interesting? Not some marketing BS spam?

Nick/Dan,
As you both allude to, the line is always a little fuzzy. Too much business and you sound like a robot. Too much personal and the question becomes why are you tweeting (or blogging or whatever) as a professional. Steve Radick had a great post about this and one of his lines stuck with me: I'm Steve Radick whether you meet me at a meeting or in a bar. http://aiimcommunities.org/e20/blog/communications-consultant-who-always-asks-%E2%80%9Cwhy-not%E2%80%9D

To me, the trick is to be yourself, but with a filter. My desire for the Saints to repeat as NFL champs and my . . . risque sense of humor isn't a good fit when I'm tweeting (or interviewing, or managing Webinars as I used to, etc.) as a face of AIIM (though I will let slip the occasional "Who Dat!" during football season). So I'm always "me", just slightly more of a serious, business me than I am in my own time. If that makes any sense at all.

Oooh, my captcha line is "be implicit". Sounds like a Zen lesson or something. I will know contemplate the sound of one hand clapping for the next 10 minutes.