It's all about me: Why e-mails are so easily misunderstood / The Christian Science Monitor - CSMonitor.com
Also, in another source (I culled these links from "Cracked," BION): "One study at UCLA indicated that up to 93 percent of communication effectiveness is determined by nonverbal cues. Another study indicated that the impact of a performance was determined 7 percent by the words used, 38 percent by voice quality, and 55 percent by the nonverbal communication."
I think I'm going to stop reading and responding to comments, because they're even more "immediate" and misunderstood than email.
Funny, the remedy they suggest is talking on the phone. I hate the phone, too. I'm more comfortable with my writing voice. I have only found, on the Internet, that what was damned decent before is only a shadow of what I now wish to be.