We'll create fresh WordPress site with WP-Bookwormr installed. You have 20 minutes to test the plugin after that site we'll be deleted.
This plugin shows the image and the title of the book you are currently reading in the sidebar. The plugin gets this information from your Bookwormr reading list. Bookwormr is a completely free service where book lovers can list the books they are reading, have read and would like to read. Users can also write reviews and give each book a score. If you are reading more than one book the plugin randomly chooses a different book to display on each page request.
Tested on WordPress 2.7.1 and stable.