Leave it to Tim Heuer to be on the ball with adding functionality to Windows Live Writer, with not one, but two plugins. Flickr4Writer adds an interface to insert images from Flickr into your blog postings, as seen below:
The other app, Tag4Writer adds tagging functionality to WLW, linking to Technorati, del.icio.us, 43 Things, Flickr, etc. A sample output of Technorati tags is below:
tags: Windows Live Writer, plugins, Tag4Writer, Flickr4Writer
Enjoy!