How do I find affiliates to match my website?

[semiferger]

HI..
I have started a website, and I want to join companies' affiliate programs to earn revenue for my site. It is an environmental site targeted at teens, and I already have some banner ads from eco- companies, and they match my site fine, since they are environmental. But I want different ads that teens are more likely to click on, and they don't have to be environmental. Just something that a teen would be likely to click on. Does anybody have any ideas on what company to look up, for instance "itunes" or something? Or an affiliate program that would give me a category for something like that? Please let me know ANY ideas at all, even not as specific as this.
Thanks