Commenters lets you display images of persons who added comments to your blog posts.
Content by Permission adds a couple shortcodes where you can specify what permission is required to view the content.
Feedfabrik allows you to print your blog as a PDF or real book via Feedfabrik.
Hikari Krumo is a port of the Krumo debugging too.
Hikari Tools Framework is a development framework with tools to be used by other plugins, so that they don’t need to duplicate the same code over and over again.
In Their Language detects the user’s browser language preferences and attempts to switch your site/blog to that language.
Plugin Dependencies is a meta-plugin that enables regular plugins to define which other plugins they need to function properly.
nrelate Related Content analyzes your website content and displays other related posts from your website.