DoshDosh has a post titled Learn From an Adsense Millionaire: Notes on Markus Frind and PlentyofFish.com. It is amazing how much a great idea and hard work can bring in.
His annual income from PlentyofFish.com alone is currently $5 to $10 million a year. What is fascinating is that Markus Frind is a one-man show. He virtually ran Plenty of Fish by himself, along with help from his girlfriend and other voluntary moderators.
