Selling financial services as an affiliate of a company. Too bad they close their practices outside US, I was making a nice sum of money back then.
I started with Paid To Click and Paid To Read e-mails sites... Got few dollars, but they really arent worth of it.
I started a blog back in 2003. It got kind of popular, and people began offering money to advertise on it. I suddenly thought "wow, this could be something cool" so I launched a bunch of other online business ideas. They quickly flopped because I put no thought into it. Then I buckled down and learned about the web. Now my ideas have a much higher success rate.
I started off with my online shop selling herbal products. (I still have this online shop but selling different products which brings me more repeated customers.) Then I discovered AdSense! Then Clickbank.
eBay, selling jellybeans in glass jars as "mood candy" for $10 a pop. I do remember those times when you could have sell anything you wanted on eBay and make loads of money.