Does it feel like the speed at which SEO techniques (and their effectiveness) are changing is on a constant incline?
If so, you’re not alone. Google’s getting smarter and more powerful all the time — not only at analyzing and understanding web pages, but also at how effective it is at keeping people within its framework.
Why? The better Google is at answering queries within the SERPs, or directing users to ads instead of organic listings, the more money it makes.