I keep getting emails from a website called “Shelfari”, supposedly a personal invitation from someone to join an online bookshelf-type site. Googling around, apparently what this site does is harvest your email address book during the sign-up process, and then spams – oops, sorry (jn), sends personalised invitations to – all your contacts. And then sends a reminder when they ignore it.

Just thought I’d mention it here as a warning to anyone tempted to sign up. You may end up annoying a lot of friends and contacts if you tick the wrong box.