MODxTweeter

This is plugin that will update your twitter status when you publish. To get it to work you need to create an application at dev.twitter.com and use the keys generated there. I would create an application name with the name of your website and link back to as well. The placation type is "browser" and the access is "Read & Write".

It also requires two template variables and one chunk. One TV (tweet) is used to turn on the tweet for that resource/document, the other TV (twitterStatus) is the message that you are posting. The chunk (tweetChunk) is used to format the twitterStatus TV.

The default chunk is "MODxTweeter 1.0.0-beta1 ", gus is a snippet that creates a link using goo.gl as a url shortener. If you do not have gus installed your status update will fail unless you change the chunk.

I have my blog posts setup not to publish on save, I then use right-click to publish. That will then send the status to twitter.