This whole digital revolution has taken an impact on my cognition. Posting information online is throwing off my whole flow.
I usually have a pretty good memory for discussions I've had (in person, on telephone, in email, or even in IM) but posting my opinions online has lead to a few moments of uncertainty. I mean, I'll be offering my usual witty insight on some current affair with my close friends, and if I had recently "blogged" the subject, then I will wonder if I'm needlessly repeating myself. I'll inspect faces for a look of recognition, pause for dramatic effect to see if they jump in with what I was going to say, glance around nervously.
Only a couple of times has someone (usually the same person) acknowledged (usually tacitly) that they've heard the info before, but it'll still take a moment for my brain to trigger that I've written on the subject and the person has read what I've written. Then it just gets weird.
Weird. Still weird. Still weird when I type to someone in IM and then later that week we'll talk in real life and bring up info from the IM. Still weird. Weird, man.