If you have a Flickr account which hosts lots of images, having easy access to use these images for something ‘other’ than viewing online makes the service that much more useful. If one such function you find helpful is inserting your images directly into blog posts, then check out the Flickr4Writer add-on.

This plugin does exactly what you would expect:

Flickr4Writer is a simple plugin for Windows Live Writer that enables a user to browse a Flickr user repository and insert an image from Flickr into a Writer post.

While I do not personally use Flickr, I can see how this would be a very useful addition to any blog software.