WP Plugin: WordPress Order Pages is a handy plugin for re-arranging your page-order. No Ajax, but it does the job quickly instead of having to edit every page.

WP Plugin: Download Counter keeps track of the number of downloads from your site. It doesn’t track all the clicks on your site, but only those you wish tracked. Other plugins also available on the page.

WP Plugin: iMP Download is a download manager for WordPress, featuring download count, force download, quicktag, etc. Also available are other WordPress plugins on the same page.

WP Plugin: Post2PDF exports your post in Adobe PDF file format. You can customize the output of the PDF file. Useful if you would like your visitors to download and keep a copy of your posts.

WP Plugin: MengTracker Show the links clicked by your visitors, the exact clicking place of the links (page and region of your site), and the clicking time with pretty charts.

WP Plugin: WP-Ban Ban Users By IP Or Host Name From Visiting Your WordPress Site. Quick and handy method to prevent certain users/bots from accessing your blog. I’ve been doing this using .htaccess so far.

WP Plugin: Podcast Release Creates a Podcast Release page on your site with customizable Release Text for acceptance by guests. Useful for Podcasters, esp. those conducting interviews.