Facebook has added support for posting to Twitter from your Facebook Fan Page, this has the potential to save Charities / Non-profits a huge amount of time and make your updates much more viral. Whilst I don't think you should start posting to Twitter via your Facebook page it does mean that some updates can be added to Facebook and sent directly to Twitter with just one message.

{jb_greenbox}This has the potential to save you time and in the future we could see Facebook comments and Twitter replies all tracked on the Facebook Fan page. A very cool possibility.{/jb_greenbox}

Once you have linked your Fan page to your Twitter account using this page on the Facebook site any post you make to your Facebook page will show up seconds later on Twitter.