The importance of Links
By now, you've started to make a list of relevant urls. You have, haven't you? Ok, if you haven't then now is the time to start. Make a list of all the relevant urls. Make a list of all your competition's urls. Make a list of other urls which may be useful. Make an email list of contacts for the sites.

Why keep a list of urls?
You want to keep your site current and up-to-date. You'll need to visit your rivals sites again and again. Know the enemy. And you might just want a links page on your site. Your email list will come in useful later!