If you want to get listed at pandia then you have to check with this. Can I submit my URL to your site? http://www.pandia.com/info/faq.html#Heading5 "If you want to submit your site to the Pandia Plus Directory, you should do the following: Find the most appropriate category for your site. Then submit your site information from the Add URL link at the bottom of that category page. Pandia Plus is based on the Open Directory database, so you can read the Open Directory's "How to add a site" page for more information."
http://www.pandia.com/optimization/submit-site.html and its based on DMOZ, get listed in DMOZ and you'll be there. I've to say thats some guideline
i've followed the instruction above but i don't see the 'add url' link anywhere - i've 'find' searched for it as well. so where the hell is it? twelfty