Hey,
Being an Affiliate isn't always as easy as it sounds when you hear about it.... You need to know in depth about the product or service you will be selling - if you don't how can you market it properly?
It can also be hard to get your first few sales, and it might take a while to get them as well, but stick at it and you will get them. I find what works best for my Affiliate sales is my Auto-Responders - Each month I send out a load of emails to my clients, giving them information on an affiliate program that I think will benefit them.
AWeber is a good Auto-Responder if you don't have one already. I think they have a $1.00 month trial on at the moment, and it is so easy to set up and starting sending out your affiliate links, however you will need a web page somewhere for people to sign up (unless you buy other peoples lists).
I would also look into
ClickBank, that is a good starting point for Affiliate marketing.
Becoming an Affiliate is a great way to get your foot through the door an into Internet Marketing, or sales. I started that way, and now I'm moving onto bigger better things.
Adam