Shelfari, one of the websites on which you can catalog your books, has a new widget. The new application enables you to display your books on your blog. So if you do not show of your library my means of a photo via ‘Your Shelves!’, you can do it on your blog via the Shelfari Widget. You can choose whether you want to show your books on a shelf or in a list. You can see the widget in action via this link.