I keep hearing this Find A Niche thing, and I have been doing some research. It really sounds like a case of researching stuff and writing some useful articles on it. Place the articles on a SEO optimized website and wait for the adsense dollars to roll in.
If it is that easy, surely everyone would be doing it, or is it really that easy?
While I would like a passive revenue stream, the only problem I have with this strategy is that I don't really want to spend my time researching and writing articles. I would much rather find a niche market for an online software app (sort of like patio11's bingocardcreator) that is small enough to build fairly quickly and makes a difference to some market, but finding such a market if you don't already have inside knowledge is the hard part I am finding.