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.
A very simple way to add scheduled posts to WordPress' internal linking system.
Lists pages and subpages for a given page, or the top ancestor of the current page and all of the ancestor's descendants
This plugin allows your WordPress blog to output pages compressed in gzip format if a browser supports compression. HTTP compression generally means …
This plugin allows WordPress to block over 95% of spam comments using a time-based hash.
An easy way to add custom fields to your object types (post, pages, custom post types, users)