Well, it's been quite the year for the SEO world. Watching events unfold day in and day out, you almost forget just how significantly things have changed for those of us within the SEO community. Sure, there have been the sort of blockbuster breakthroughs (think Penguin 4.0 or organic AMP results). Still, a lot of the changes we saw in 2016 were brought in slow increments, piece by piece (just compare Google's Knowledge Panel as it is now to what it was a year ago). While there's no way to cover all of the significant changes 2016 has brought, I'll do my best to highlight the ones I think mattered most... and you might be surprised to see what made the list.