Moderator & Chevereto freak
I setup this new service (sosio.io) which lets you add information notifications and many other widgets to your site. Works great if you'd like to tell your users something new or what not. There is a bunch of neat notifications to choose from and you can tweak and customize them like you want. Wort a try if you are looking for something like this. Let me know your account name and I'll assign you a free chevereto plan with access to all notification.