+1 Button Plugin adds a Google +1 button to your posts.
The Google +1 plugin adds the Google +1 button to your site so your visitors can vote to tell the world how great your site is.
Hide Unwanted Shortcodes prevents unwanted shortcodes from showing on blog.
Update Active Plugins Only tells WordPress to only check for updates to active plugins.
Front-end Editor allows inline editing of your content.
Theme-Check allows you to run checks on the current theme before uploading to WordPress. This plugin uses the same API and is kept more or less in sync with the WordPress.org uploader tool.