I am have a little trouble with one of the distance calculations I plan to do for my weblography.com project.

Ok, so the domain is bought, the database is built. All that is left is the snazzy web interface. What it will be is a Weblog directory that you can use to find the distance to another blog. Another cool feature not found on any other the other blog search engines would be to blogs in your state. (well there is one, but it is never updated and quite lame) Anyway. I am off to work on it now. I have a few crazy relational queries to figure out.