Well. I for one sure do want to know exactly where a short url leads to before even thinking of going there.
So I googled a bit and came across URL X-Ray (urlxray.com)
Just feed it the short url and it will look it up for you.
Or you could grab the bookmarklet that allows for a javascripted window on top of any site so you can check those nasty short url's on the go.
Don't get surprised by nasty shortened url's, use the tools that snif it out.
Disclaimer: I am NOT affiliated with that site in any way, I just HATE short url's 