Like Buttons

I've been working on a word of mouth marketing presentation and came up with a great idea that I think would be perfect for a library webpage. You know on facebook and other sites they often have a "like" button or comment. Wouldn't it be great if we had these on our library websites and encouraged folks to click on the like button and post some comments. How great - we could then use those comments to tell our story AND we could ask those folks to tell their friends!