I have a similar project and have been thinking of charging £9.95 per year to get things going. I'll need the listings quickly to fill up the directory and the fresh content will do my sites well.
Doodlebug check out this link:
http://www.chefpatrick.com/developing-a-geo-domain-part-1/
There are 5 parts to the article (if you don't find a link in the article to the next part, change part-1 in the url to part-2 etc.). It's an article which has been republished, nothing crazy groundbreaking, but it touches on a few ideas for geo domains and briefly compares geo issues/opportunities with generics. I read this article this morning.
I have a developed a few directories and started with geos (with directories). At the moment all the listings are free (I monetize through adsense). Take a look at a few of my sites:
Acton Town (directory home)
Glasgow Florists (
How a florist listing looks)
I know the issue of time to publish a listing was brought up - the way I've handled it is that anyone can create a listing and all I do is approve it and by checking a box the title, logo, contact info, google map, description and photos are published to an SEO-friendly link.
I believe that there is probably a paypal script/api to have premium listings to generate yearly income from subscriptions.
But more recently I've been thinking of using an off the shelf script (or completely redesigning my own script) so that businesses have a control panel to login and update their listing and subscription level.
Types of software I've looked through:
http://www.edirectory.com
http://www.directorypress.net/
http://phpcityportal.com/demo/
*there are a few others that I researched - just can't remember their names or find them in Google - they were around $100 (will keep looking)
Check out these UK geo sites
http://www.geowaremedia.co.uk/ - I forget who they belong to on Acorn, but their geo sites look great
I have a whole bunch of London geos that I want to develop this summer so let me know how your project goes.
I realized that I went off on a tangent here from the question of subscription prices, but would be interested if anyone has any software recommendations too as well as how much you would set the subscription package levels.