If you prefer “Posterous” blogging platform over Moveable Type, WordPress and the like, do you know that you can use Windows Live Writer to post to Posterous, if you want to send the same post to both your traditional blog or website and your Posterous blog at the same time. In order to support Posertous publishing, you’ll need to grab the Writerous plugin from Codeplex. Once installed, you access the new settings via Tools –> Options –> Writerous from WLW’s main menu. Here, you’ll have to provide your Posterous login info and site name (the latter if you maintain more than one Posterous blog). You can also configure your Posterous posts to autopost to Twitter and Facebook, too, by checking the box next to that option.
More info: Writerous