su.pr is a URL shortener that posts directly to Facebook and Twitter (two of the biggest social linkers today)

StumbleUpon has been around awhile, and I'll admit it's never really appealed to me. I usually find news via social media, friends or through Google Reader (lately). It does, however, boast nearly 8 million users. Linking your content instantly into that network has its advantages. 8 million Twitter users may be more potent today. But, why not compound both?

su.pr provides the options of:

• Simply shortening a URL
• Posting shortened URL and blip to Facebook, Twitter or both
• Tracking clicks
• Tracking StumbleUpon votes (thumbs up)
• Scheduling Tweets and Facebook posts