This plugin lets your twitter followers know when you edit a post.
Twit-update is a wordpress plugin which can post to twitter whenever you make a new post, or even edit a current post! Now you can also include the full post or the post excerpt in your notification.
If your posts have information which requires frequent updates, such as projects, news, or just in case some wrong information leaked trough twit-update will notify your twitter followers of the change.
Features include fully editable twitter messages which can include variables such as: -the post name<br/> -the post author<br/> -the post URL<br/> -the number of comments on the post<br/> -the original posting date<br/> -the date of the last edit<br/> -the post excerpt<br/> -the whole post!
Now you can also add a sidebar widget which shows your last tweets!