Brooke.

Daryl L. L. Houston (dllh)

Delete posts, pages, links, tags, and categories from your blog with one admin tool rather than having to handle deletion of all of these as separate actions.
Select from post types and tick a box to determine whether or not to delete tags, categories, and links. A javascript prompt will keep you from submitting by accident.
Users must have the “Manage Options” capability in order to use this.

Empty Blog

Created with developers in mind, this plugin allows you to easily delete posts, tags, and categories.

Brett

Frontend Features: 
 – adds a toolbar to the bottom of WordPress pages that will show meaningful information that helps developers to create optimized WordPress sites. 
 – Info includes SQL queries, query vars, peak memory usage, and a filetrace.
Backend Features: 
 – Provides a very basic checklist with suggestions for development. 
 – Shows basic server stats and information 
 – phpInfo 
 – WP rewrite rules (coming soon)

Developer Toolbar

Adds easy to access data for developers, including a fixed toolbar to the bottom of pages that shows query data and memory usage among other data.

Empty Blog vs Developer Toolbar