Maybe I should explain this a bit better.. The link network requires you to put a piece of PHP code on each page of your site. This code displays 1-5 text links (you specify the amount), and in return, text links you create get posted on other members websites. Google picks up your links when it spiders these sites, and your site becomes more popular.
http://www.celebrityseats.com/coop.html - If you're looking for more info, everything you need is right there. It's more geared towards commercial websites that are trying to move their way up the search engine results so they can get more traffic to their website.
