^ hate to really sound like a wet fart, but not much has changed over the years. Aside from Google being more aggressive with their filters, etc...
If I want to stay up to date on any of the latest SEO developments, I just read some of CCarter posts, Grindstone's rants and the occasional unknown poster who comes out of the woodwork with a polarizing idea or thought.
Even then, I just continue deploying strategies I learned when I started back in 2011, amazing that the more I follow what I learned when I first started, the better results I get.
Yeah, with a few duds here and there, that's just SEO, yo.