I'll answer this, even though I think it's just karma-bait.
My best passive income is a piece of software I made in one week that processed payments for school events (field trips, clubs, etc). I've made over $120,000 in two years with it.
http://www.rippedrecipes.com My cousin and I started this site a couple years ago, revenue is steady around $250/month, we get on average 4,600 unique hits/day ... reading other people's revenues I feel like we could do better with the traffic we get, so if anyone has any comments or thoughts, they're more then welcome!
For God's sake, these sort of threads pop up every week. No one has a magical formula that you can just copy. There are thousands of ideas in the other 200 threads about passive income. Please just stop... really.. stop.
