The Pressbox plugin adds a new tab to the Media Upload screen that allows you to insert images and files from Dropbox into your posts.
Additionally, the plugin provides a new shortcode that lets you add links or display images anywhere you want on your blog.
This plugin is under heavy development so please feel free to send me feedback, bug reports, and feature requests!
Credits:
This plugin bears a great debt to the work of Joe Doleson’s Wp To Twitter plugin for his excellent example of OAuth integration with WordPress.
Screenshots
Pressbox displays thumbnails for your images to allow for easy image picking.
Pressbox gives you access to your entire Dropbox.
Pressbox uses Dropbox's new OAuth based Web API. No need to move all the files you want to use to the Public folder.
Pressbox can display image thumbnails, allow you to save favorite folders for easy navigation, and set a custom default folder.