WP SimpleMail allows you to access an IMAP compatible email account from your Dashboard.
Amazon Tools allows you to quickly and easily retrieve Amazon product information and display it on your WordPress blog.
Tab Override allows you to enter tabs into the HTML editor (not Visual) as you would in a desktop text editor.
WP Get allows you to display content in posts dynamically, based on URL parameters.
Apparatus allows you to write and execute PHP code directly from your WordPress admin area.