I discovered that Indeed.com has an affiliate program that allows you to add their search boxes to your website.
So, I signed up and bought a domain (in sig, not trying to promote myself here, just sharing my story).
It started out as me just messing around in between classes one day. I haven't done any advertising except my sig here, and I added it to my sig on another forum today.
Somehow I'm getting 200-300 views a day - after less than a week.
I decided to put a little more effort into it - all offline. I ordered 1500 business cards (cheap from vista print - see image). I'm going to put these cards on all of the bulletin boards at my college, at the car wash, the barber shop, and anywhere else I can. I'm also taking out a classified ad in my local newspaper. I'm not expecting to make a ton of money with this, it's just more of an experiment for my own knowledge.
The reason I'm posting this is just to show that there are literally endless possibilities when it comes to making money online, and this is just something I happened to stumble upon. Just keep your eyes open and your head on a swivel because you never know what you might find.