If you’re a power blogger, or someone who blogs regularly, across multiple blogs, with detailed, in-depth posts, a desktop blog editor can make your life infinitely easier.

Some are browser-based, some are standalone. Some work across different platforms while others are only for Windows or Mac OSX. Some are paid while others are free.

Web Designer Depot has a list of 20 Useful Desktop Blog Editors.

I use a combination of the web Wordpress and MarsEdit (Mac).