I believe it's important to have multiple ways to earn money. You never know what could happen, when a method goes saturated, the business you use to monetize goes under, site gets hacked, laptop stolen etc... So I'm asking for those of you who make money, what are you multiple income streams? Me personally, I get about $100/month from PPD. All SEO (or lack of really, I hardly update my sites anymore), basically this is pretty much an autopilot money machine at this point. Ain't making me rich, but I can't complain. I've recently gotten into Kindle. I have about 3 books released right now, but I'm thinking I should have researched my niches better.. currently earning anywhere form $3-$5 a month from this. Very discouraging, considering the amount of time and effort I put into it.. I think the return is so little. But I have not given up just yet. CPM.. Pretty much all my money sites, including my PPD, and others I am experimenting with I use popAds with.. combined I earn about an extra $10-$15 a month. I inherited a bunch of collectables from my grandma when she passed away, so for a good portion of 2014 I was selling stuff on ebay.. some months I would make upwards of $600. I pretty much ran through everything I could possibly sell, so nowadays it just sits there. But I did beef up my ebay account, and still have a %100 feedback status. I feel this could only come of good use in the future. WHat about you guys?