Sit back and let the dividends start rolling in with these income stocks.Passive income is a popular concept these days. Defined as money earned outside of a traditional job and requiring minimal time or effort, it is a tantalizing proposition for investors tired of the rat race.Many people will pitch buying rental properties as the best form of passive income. But I think this is a misnomer. Managing a rental property may be profitable, but it requires a lot of time and effort to maintain. That is not "pas ...