TweeU is a Wordpress plugin based on Tweetly Updater that updates Twitter when you create or edit a blog entry, it uses the buh.bz service for short urls.
It can use your tags and categories to add hashtags to your tweet.
TweeU uses buh.bz, instead of bit.ly. There is no need for authentication on buh.bz.
27-02-2015: TweeU 1.7.1 has been release. Re-worked TweeU code and upgraded TwitterOAuth from https://github.com/abraham/twitteroauth.
13-07-2011: TweeU 1.2 has been release. This is not a major release, just Twitter api-key update and some minor clean-up.
01-09-2010: Second version of TweeU is here. Check out TweeU 1.1 with support for the new Twitter authentication.
29-01-2010: First release of TweeU. Version 1.0 is out.