Stay clear of story rotators It seems like the latest fad and it's actually a big mistake. A story rotator widget takes up a lot of real estate and users mostly ignore it due to the phenomenon called ad blindness.
The simplest of all ideas, building niche web sites. Many of the successful affiliate marketers are applying this business strategy. Build a tiny web site on a micro market and sell products focusing a small audience. Build 5-10 such websites, sit and earn money. This is a most common idea but it works only when you play the wise game of SEO.