Windows Live Writer

Windows Live Writer is a desktop application that makes it easy to publish a variety of content to a blog. It makes publishing to major blog services, including Windows Live Spaces, SharePoint, Wordpress, Blogger, and many others, so easy. Create an impressive blog in no time with personal photos and videos, maps, tags, and lots of other great content. You can preview the post before publishing. Entries can be written offline and published later when you're back online.