Visible Links -- looks like a cool way to advertise your book

I've been playing around with http://visibletweets.com today. You can link it up to your tweets and make a nice display for a bookstore or somewhere. Would love to hear from anyone who has used this effectively.

Anyway, go to www.visibletweets.com and type in #sklopfer/civil-rights and I made a display about my book, Who Killed Emmett Till? Not completely sure I've done this right, but it worked. ;>)

Looks like this links with http://tweetchat.com.