Chrome: LinkPeelr is a lightweight extension that embeds the LinkPeelr URL-unpacking tool right into Chrome. Hover over any shortened URL and see the full URL you'll be redirected to.
Shortened URLs are great for character-limited formats like Twitter and for keeping your emails neat and tidy but they have the unfortunate side effect of obscuring the real link. If you'd like a better idea of what exactly you're clicking through to, the LinkPeelr Chrome extension enables simple mouse-over URL expansion.
LinkPeelr is a free tool and works wherever Chrome does. Visit the link below to grab a copy at the Google Chrome Extension gallery or use the web-based LinkPeelr interface here.
LinkPeelr [Google Chrome Extensions via Download Squad]