simple 

A timer/clock residing in the statusbar.

Really simple sticky is a small extension where you can add notes, reminders directly in your browser. The note is stored localy in your browser. Please give FEEDBACK at my blog http://firefoxexstensions.wordpress.com/2009/06/30/really-simple-sticky/

Author: Robert Chapin (miqrogroove) Advertises short URLs similar to post GUIDs using page headers. These can be useful for micro-blogging, and allow you to use your own domain instead of a 3rd-party short URL service
Installation:
Upload the simple-shortlinks directory to your /wp-content/plugins/ directory Activate the plugin through the Plugins menu in WordPress This is a zero-configuration plugin. There are no settings. Deactivation removes everything except the files you uploaded. There is no "uninstall" necessary.

Author: David Artiss From version 1.1 a cache system is used - please read the installation notes for ensuring that the new caching facility correctly works
Installation:
Upload the entire simple-url-shortener folder to your wp-content/plugins/ directory. Ensure the cache folder within the plugins folder is fully writable - ie. change its permissions to 777. Activate the plugin through the â??Pluginsâ?? menu in WordPress. There is no options screen - configuration is done in your code.
faq:
You havent included my favourite URL shortening service Just let me know and Ill possibly include it in a future release. Im trying to just include the most popular services, as there are hundreds available. How can I get help or request possible changes Feel free to report any problems, or suggestions for enhancements, to me either via my contact form or by the plugins homepage at http://www.artiss.co.uk/simple-url-shortener

Author: Pepak I wrote Simple Download Monitor because I wanted to monitor the number of downloads of my files without having to maintain any kind of database or making any special download links. I just wanted to upload a file to a designated directory using FTP, provide a direct link to it and once in a while check the number of downloads. And this is pretty much what Simple Download Monitor does, with some slight additions, such as recording referers and username of people who download my files
Installation:
Create a subdirectory in your /wp-content/plugins/ directory and extract the plugin there. The plugin subdirectory can be anything you like - I use simple-download-monitor, but the plugin should accept any name. Activate the plugin through the Plugins menu in WordPress. You will see a Simple Download Monitor item in your Settings menu. You can enter three options there: Allowed directories. The plugin could potentially be a huge security hole because it could be used to download source files of your site (e.g. config.php - you definitely dont want to allow that!) This option restricts Simple Download Monitor to directories matching a regular expression. The default value of files/ means that Simple Download Monitor will only allow download of files in the /files directory and its subdirectories. Allowed extensions. Much like Allowed directories, allowed extensions protect your sites files from unwanted downloads. It is a regular expression too and it is recommended to only place "safe" extensions such as zip or jpg here. Do not EVER allow php extension, either directly or through wildcard (such as .* - that is a BIG NO-NO!). Store detailed info. If this option is checked, detailed information about each download (such as referer, users IP address or name, and date of download) is stored. This could fill your database quickly if you have a well-visited site so you can turn detailed info off and only keep the number of downloads and the date of last download. The last step involves editing the .htaccess file. The default .htaccess skips default WordPress processing for existing files, which means that direct-linked files would get downloaded directly, without Simple Download Monitor ever learning about it. You need to modify the .htaccess file so that downloads are passed through Simple Download Monitor. This is easy enough to do: Open your .htaccess file and locate line RewriteCond %{REQUEST_FILENAME} !-f Add this line directly above it: RewriteRule ^(files/.*) /index.php?sdmon=$1 [L] (replace files/ with your download directory).
faq:
= Why dont I see any files in the download statistics? Because nobody downloaded any file yet. Simple Download Monitor does not scan all available files and assign "zero" downloads to them; instead, it starts with an empty list and populates it with attempted downloads. If you want to see something, just try to download one of the monitored files. = Simple Download Monitor doesnt monitor my downloads. Why? The most common cause is that your webhoster doesnt support user-definable .htaccess and/or mod_rewrite, both of which are required for the expected (standard) behavior of Simple Download Monitor. The second common cause is a misconfigured .htaccess. You can verify that Simple Download Monitor itself is running by using a specially-formatted URL for download: instead of http://www.mywebsite.com/files/somefile.zip try this URL: http://www.mywebsite.com/index.php?sdmon=files/somefile.zip This URL calls Simple Download Monitor directly, without any interaction with mod_rewrite, and should therefore work at all times (unless there is a bug in Simple Download Monitor or its installation went wrong). If it succeeds, you know the problem lies either in your .htaccess file or in the fact that the required functionality is not provided by your webhosting.

Authors: Deanna Schneider, Kevin Graeme This plugin allows site admins to turn on and off the following widgets on the WPMU dashboard (for all users)
Installation:
Upload the cets_simple_dashboard.php file to your wp-content/mu-plugins directory Go to Site Admin -> Options to configure dashboards.

Author: Max Chirkov This plugin adds a widget into the Widgets dashboard that allows in a simple way, without writing any PHP code on your part, to create custom navigation in any sidebar pre-defined by your WP theme
Installation:
WARNING! AHTUNG! BHEMANIE! ADVERTENCIA! ALERTE! The data storing conditions have been changed since 2.0 version. The plugin will try to convert your existing simple sidenav widgets, but I suggest you to backup or make notes about your existing simple sidenav widgets, in case something goes wrong, so you can restore or duplicate your previous settings. Install like any other basic plugin: Upload simple-sidebar-navigation folder to the /wp-content/plugins/ directory Activate the plugin through the Plugins menu in WordPress Go to the Widgets dashboard, scroll to the bottom to add the desired number of widgets. Add widgets to your sidebars and edit them. The edit window should be self explanatory. Top Navigation Management functionality: Edit your themes header template or the correct template that contains header navigation. If you have static navigation links in your template or any other functions that generate your top navigation - paste it instead of this tag <!--YOUR OLD NAVIGATION -->. TopNav Code: <?php if ( !function_exists(dynamic_sidebar) || !dynamic_sidebar(Simple Top Nav) ) : ?> <!--YOUR OLD NAVIGATION --><?php endif; ?> Until the "Simple Top Nav" widget is created in the administrative widgets dashboard - your old navigation will still be functioning. The same applies when the Simple Sidebar Plugin is disabled or removed. Go to the administrative Widgets dashboard and select "Simple Top Nav" as your current widget. Add one of the available Simple Sidebar Navigation widgets to the sidebar and edit it. Suckerfish or Drop-Down Menus: suckerfish.css default stylesheet is included. If you would like upload your own, separate from your main CSS file, drop-down menus stylsheet - you can specify its path via Settings => Simple SideNav. Notes: If you add more than one widget to the Simple Top Nav sidebar - it may break your themes design or layout since only one list of links is usually expected to be there. Widgets Title in the Simple Top Nav sidebar should be blank - otherwise it will be hidden via inline CSS as display:none. I couldnt figure out how to alter the widget "on load" to remove its title since it shouldnt be in the top navigation.