Just short of $1000 from Amazon so far in 2018.
So those of you that follow me know that I started my first site last April. It was slow going. Despite a lot of posts and not a lot of traffic I mostly kept at it (I took a 1 month break and now wish I hadn't). I started seeing a little money roll in last November/December based on some seasonal postings.
Then this year I really started to buckle down and post good long form content. I also did several guest posts to very specific high quality sites in my niche to build a few links to my site and my content. It never hurts to network either!
You can see that the results are pretty distinct. Everything has continually gone upward this year.
So I'm at about the 15 month mark at this point. And if my site continues as is this year I'll expect to earn somewhere in the area of $2700-$3000 this year.
Keep in mind I have a full time day job and only dedicate time here as I can. But do note that this is worth doing even as a side project or side business.
Good luck out there everyone!