Roper posted on his blog (http://rogerothornhill.typepad.com/) a concept I found quite interesting. It's called the de-lurk. I'd never heard of it before. Basically, the author knows that there are people who read their blog but don't necessarily comment. And this is where those people who 'lurk' are invited to comment, even if it is just to say hello. I welcome all readers to do the same here. Your comments will be much appreciated.