I just noticed a feature of digg. You can post on articles on digg directly to you blog from within the digg site.
There are some problems with their implementation. The interface to configure the metaWeblog settings, do not all allow spcifying the blog ID, which is required for he metaWeblog API. Also, the blogging interface doesn't allow categories to be specified.
Since I am used to my blogging software, I wish that digg would allow trackbacks to be used to identify posts that as "Blogged This". Specially crafted trackback urls can be used to identify the digg profile that should be associated with the post.