I used to do a little bit of affiliate marketing from 2009-2012 with moderate success when I started following Kelly Felix's Bring the Fresh program (did about $1,200-$2,000/mo in my spare time). Obviously, almost none of those strategies are useful these days. The BTF guide was last updated in 2015, but from the sound of it SEO is MUCH more difficult these days, and it seems like you almost have to pay for high quality links to rank a site anymore.
I was thinking about getting back into it, particularly since I have a lot more discretionary funds to work with. What should I be looking in to if I want to get back in to IM? Any noteworthy marketers I should be following? Suggestions for programs you're currently using? Other groups/forums I should be in? etc.
Thanks in advance.