I have always managed my portfolio and retired at 55 - as it turned out I could have done it 10 years sooner, but I was worried about putting the kids through college. Anyway, I don't need to be paid anymore, I just volunteer. Investing is my only paying job. I'm very interested in passive allocation strategies oriented toward non-correlated returns. But I still play around with some of my portfolio for fun. Active investing can be an interesting game, and money is a great way to keep score. While Seeking Alpha is a potential source of investment ideas (lots of sifting required), I find it much more useful in studying behavioral finance. It's very entertaining - tragedy and comedy almost every day.