Yeah, I had problems of that sort that I eventually got around. Here's my comment, by the way:
You're burying the lede by not putting Peter Seibel's name at the top (e.g. "A message from Editor in Chief Peter Seibel..."). He's the only reason I'm interested it what otherwise sounds like a "me too" site, whereas an effort by the author of _Coders At Work_ demands attention.
It wouldn't enable for me after double clicking the Email box and selecting my email from the dropdown box in Chrome, a further keypress enabled it though
...oh snap!