Flickr4Writer is a plug-in for Windows Live Writer, a blog authoring tool available free to anyone. The plug-in enables a Flickr user (Flickr account is required) to browse their own photos as well as others and insert the content into a blog post using Writer.
The plug-in enables you to search all your content, photosets, or search by tags. It is available for free and can be downloaded from Codeplex. For developers, the code is also made available if you want to contribute fixes and features (that comply with Flickr API terms of use).
I hope that you enjoy the plug-in!