Some Wordpress plugins are often updated, which is good think. Plugins that are updated are 100% compatible with last Wordpress version and they also are the most secure possible. A plugin that has not been updated for a long time might not work with last Wordpress version and might create a security breach for you website.
Adds automatically the meta tags required by Facebook to your pages, posts, homepage, shopp product.
Allows you to put Rotating Marquee's In your Posts and Pages. It is a free and first plugin to wordpress by me. Now works with PHP 4 and PHP 5.
With this plugin, you can manage a simple support ticket system on your WordPress site.
newsPage is an easy to use plugin that allows you to have a headline aggregation page on your blog.
UserAgent Theme Switcher is a simple plugin which lets you change the theme to be displayed according to the detected browser
This plugin automatically shares posts to facebook and twitter with predefined messages and grabs the facebook comments.
Integrates Pinterest and it's different assets and goodies with your WordPress site.
Display Facebook's facepile, and feeds from Pinterest, Twitter, StumbleUpon, and Google+, with tabs