ruanyf

Twitter uses t.co short URLs in all tweets. All links will be forcedly converted into t.co domain which is ugly, troublesome and blocked in my hometown China (Damned).
This plugin will help you get rid of t.co.
It is based on Twitter Tools. When a post is created automatically from a tweet, this plugin will unshorten all t.co short URLs in the tweet.

untco

When a post is created automatically from a tweet, this plugin will unshorten all t.co short URLs in the tweet into their original URLs.

robertalks

TweeU is a WordPress plugin that updates Twitter when you create or edit a blog entry, it uses the buh.bz service for short urls based on Tweetly Updater. It can use your tags and categories to add hashtags to your tweet.

TweeU

This plugin sends Twitter updates on new or edited posts, uses buh.bz.

untco vs TweeU