Passive income is a funny phrase... I've tried it before too, but always end up pouring more time and energy into it than I first intend. At first it's "I need to put time into this to get it started, then it'll be all good."

When it's generating income, the question becomes "can this be scaled to make even more money?" Then we adapt, A/B test, work promotion channels, obsess over page rank, refine analytics... ugh.

I wish you luck :)