The wordbooker plugin for WordPress works well. If you don’t want to repeat posting from your news or blog to facebook and twitter, install this plugin. It can post to your Facebook page. You can pick the page if you have a number of pages and you can select whether to update status, write to the wall or post a note. There are many options and it is very flexible, but can be a little overwhelming at first. Updating the status is very useful as this can be used to update Twitter at the same time.