Plugin Manager lets you to view, download and install plugins from WordPress.org from an AJAX’ed interface, instead of manually downloading, extracting and uploading each plugin.
This plugin allows you to add breadcrumbs to your theme.
The Lijit search ‘wijit’ allows your visitors to search through not only your blog content, but also your extended social network.
WordPress Widget will take the latest, random or top rated quotes from this website, and display them on your blog
This plugin will allow your visitors to share your content via social bookmarking sites and/or e-mailing the post to a friend.
WP Super Cache is a static caching plugin for WordPress. It generates html files that are served directly by Apache without processing comparatively heavy PHP scripts. By using this plugin you will speed up your WordPress blog significantly.
With the FTP Plugin for the WP Database Backup Plugin you can perform manual or scheduled database backups and send the backup files via FTP to another server with more or maybe cheaper disk space.