Sidebar widget version of Popularity Contest plugin by Alex King. Please install and activate the plugin before using this widget.
Anonymous Posting plugin allows anonymous user to write their own posts using special page, no access to WP panel is needed.
Simple mail contact form, the way I like it. No ajax, no bloat. No configuration necessary, but possible.
Provides random members avatar list. For BuddyPress 1.2.5.x use: Jet Site Unit Could
This plugin will allow you to specify certain pages to not be linked when wp_list_pages() is used in a theme.
Google Transliteration support for WordPress and BuddyPress
'No IE' blocks visits from Internet Explorer 7 and earlier and displays a nice message with a list of better browsers.
Provides random groups avatar list. For BuddyPress 1.2.5.x use: Jet Site Unit Could
Adds corresponding favicon from Google Shared Stuff after every links in your posts.
Logs every email sent through WordPress. Works with WordPress Multisite as well
Flickr flash slideshow can display a standard Flickr Flash slideshow for a user, set or group inside an iFrame
Affiliate Plus lets your registered users get credit for new users they recruit
Conclusion random blogs WordPress MU as a cloud blogging