Snap Shots
I just installed a nice little tool on this site called Snap Shots that enhances links with visual previews of the destination site, interactive excerpts of Wikipedia articles, MySpace profiles, IMDb profiles and Amazon products, display inline videos, RSS, MP3s, photos, stock charts and more.
Sometimes Snap Shots bring you the information you need, without your having to leave the site, while other times it lets you "look ahead," before deciding if you want to follow a link or not.
Should you decide this is not for you, just click the Options icon in the upper right corner of the Snap Shot and opt-out.
Comments
Apple mail has a nice Quick Look utility that is similar where you can quickly view attachments and you dont have to open Word or Excel or other .pdf readers if you just need a short refresher on what was in the attachment.