Here is a sample of an affiliate set up. 

I think this is a great program and I would recommend that you look at the Goodwill Too promotion through Linkshare.  Click on the sidebar link to Linkshare and go sign up for Goodwill Too and other wonderful companies who want you to get the word out for them.  There are no costs involved to sign up with Linshare.  It's totally free.  I have had success with it and I'm sure you will too.  Click on this link to see the promotion and how simple it is for you to set up something like this on your website to bring in money too.  You don't even need a website to get your readers to click on to affiliate products you are promoting.  

Check this out.

iPods & More

Here's a great example:

 Apple iPod Shuffle 1GB Silver
The Apple iPod Shuffle packs plenty of features into a tiny package, including up to 120 songs in its 1 GB memory.

Only 45.99

If you don't have a website where you can promote your products, I would highly recommend that you set one up.  For the following reasons.

1) When you set up a website with a domain ending in "dot.com", the individuals who are browsing and looking for products will know that you are serious and that the website is legitimate.  

2) Most marketing companies such as Linkshare, Click Bank, Commisson Junction, Market Leverage and others will ask for your website name when you apply with them.  They will view your web site and make sure it is compliant with their requirements.  They usually want to ensure that your website is not promoting anything illegal and doesn't have any sexually explicit content.

3) Having a website forces you to learn the tricks of the trade.  I jumped in thee not knowing a thing about setting up a website, adding content, setting up banners and promoting products.  The best way to learn about soemthing is to roll up your sleeves and jump in and start doing it.