A picture’s worth a thousand words, right? So spice up those plain old text links with Link Thumbnail, the second tool from the arc90 lab. A little bit JavaScript, a little bit CSS and a little bit clairvoyance, Link Thumbnail shows users that are about to leave your site exactly where they’re going. When that curious mouse pointer hovers over a link pointing to somewhere outside of your site, the script displays a small image of the destination page. It’s a nice visual cue that serves a very real purpose: providing a clearer picture (no pun intended) of what’s ahead.

Website: http://lab.arc90.com/2006/07/link_thumbnail.php