I have a site which is running under Wordpress 2.9. I have been wanting to add a business directory to the site. The site is related to Montreal, and I had the site for about four or five years, but have never gotten the time to add a business directory.

Back in 2006, I added over 200 business listings by hand. It was a plain HTML site back then. In 2008, I switched to Wordpress.

So again, do you guys know of any good business listing plugins I can use for Wordpress? If not, would you guys recommend any good business directory systems?

I am looking it to be under a free license, but I don't mind paying either. I have a budget of about $100, if I need to buy one.