Post From Frontend allows users to create and manage posts, and edit profile info, from the frontend.
Post-to-Post Links II lets you easily create a link to another post, page, tag, or category on your site.
WP-IRC provides a sidebar widget that can be used to display the number of users currently online in any IRC channel.
Liveblog provides quick and simple blogging for following fast-paced events.
WordPress Download Manager helps you to manage, track and control file downloads from your WordPress site.