Content curation could be an extremely risky practice if you don't put a lot of effort in, or it lacks editorial voice or a distinctive point of view. After all, Google already has a curated list of content.

The definitive guide to Search and Social Meta Tags you should be using in 2013. No fluff, no wasted code, just what you need to use.

When you do any A/B testing or Multivariate testing with your web pages or web site, it is important that you do not confuse GoogleBot. If Google thinks you are breaking their guidelines or they just think something is off, it can have serious repercussions on your search rankings.

"Google’s on an uncompromising mission. It wants to give its users access to accurate information, unique content and the finest writers. It continually tweaks and improves its algorithms so that the best of the web gets the exposure it deserves.

Unfortunately, there’s a flipside: a penalty. That’s the consequence of Google taking issue with something on your site. Sometimes a penalty is well deserved, but even if you know you’re in the wrong, you probably want to do something about it."

"First it was Flash, then AJAX, and now…. parallax design. As SEOs, we often find ourselves butting heads with Web designers over website design and usability. Certain design approaches and techniques, while helpful for usability, may not be ideal for SEO purposes. But that doesn’t mean we have to sacrifice good design for solid SEO — we just have to be creative and find solutions that marry design with SEO."