I've never participated in one of these before...deep breath.

* Ebooks - I publish under four different names; the big alias I've been making $100-$400 dollars per month for several years. A few months I made over a thousand, but I haven't published anything new in months, thus the drop. Sales via Amazon (90%), Smashwords, BN, etc - I'm not on Google Play yet but on Apple, which is about 5x bigger than BN now.

* Adsense - back in the day I co-founded a niche social network, peaked at nearly $60K per month in adsense, despite being 11 years old, the site still gets a few hundred thousand visitors per month - I sold my stake in 2012.

* I'd like to add a 3rd here, but there isn't at present. Hopefully soon, keep posting these, they are hugely inspiring for all of us who mostly lurk.