We recently updated both our Business Directory for WordPress and Quick Contact for WordPress plugins.
The new versions add additional functions and fix several issues related to security and AJAX.
Our Business Directory for WordPress plugin allows you to easily create a yellow-pages style directory on your WordPress site. Once installed, your community can submit their own listing, and you have the ability to edit, approve or decline a submission before they appear on your live directory.
Quick Contact for WordPress is an extremely simple contact form for your WordPress blog that includes basic error checking and a Captcha for security. Easy to install and simple to run, Quick Contact is the easiest way to add a contact form to your blog and is a great way to help reduce email spam.