Admin Management Xtended WordPress 3.2+ only. Extends admin functionalities by introducing: toggling post/page visibility inline, changing page order with drag’n’drop, inline category management, inline tag management, changing publication date inline, changing post slug inline, toggling comment status open/closed, hide draft posts, change media order, change media description inline, toggling link visibility, changing link categories Oliver Schlöbe
BackUpWordPress Simple automated backups of your WordPress powered website. Once activated you’ll find me under Tools → Backups. Human Made Limited
Comprehensive Google Map Plugin A simple and intuitive, yet elegant and fully documented Google map plugin that installs as a widget and a short code. The plugin is packed with useful features. Widget and shortcode enabled. Offers extensive configuration options for markers, over 250 custom marker icons, marker Geo mashup, controls, size, KML files, location by latitude/longitude, location by address, info window, directions, traffic/bike lanes and more. Alexander Zagniotov
Inline Google Maps This plugin shows google maps anywhere on blogpage. Just add a permalink of google map to any text (with images) in a page, set title=”googlemap” and you’re done. Also works with complex multimarker maps and KML-based maps. Avi Alkalay
Inline PHP This plugin lets users write php code in their posts/pages, and the php code will be executed there, and the output will be displayed. Use “<exec>…</exec>” or “[exec]…[/exec] “(case sensitive) to quote what you want to execute. kukukuan
Slideshow The slideshow plugin is easily deployable on your website. Add any image that has already been uploaded to add to your slideshow, add text slides, or even add a video. Options and styles are customizable for every single slideshow on your website. StefanBoonstra
WP-Plugin List By placing in your page or post by sources code or using toolbar icon ‘Plugin List’ in your Rich text editor(only if enabled) plugin replaces it with list of currently installed WordPress plugins. Martin Wiso