by fpoller on WordPress.org
Adds option in the admin panel for making your blog (including rss feeds and uploaded files) private.
Screenshot of the admin page
Gives the following options for making the WordPress installation more private:
Adds WP functions, copyright, and more to your RSS feed items.
It is a plug-in that WP Syndicate takes in an RSS feed, it is possible to capture the content of other sites on the WordPress site.
A sidebar widget that creates a simple, clean Twitter feed of a specified hashtag.