Su.pr URL Shortener
Su.pr is StumbleUpon’s official URL shortener. It allows you to syndicate content to StumbleUpon, Facebook and Twitter at the same time, suggests the best time of day to post, and allows you to schedule posts in the future.
The following 3 URL shorteners might not be ultra popular, but they deserve an honorable mention in this list for offering some innovative features (or just having a really cool name).
