Accessibility is the surprise on this blog. One long post explains how to make social media usable by people who cannot see or hear it: captions on every video, photographs titled so the description means something, and status updates written without shortcut spelling. Almost nobody in marketing writes about that at all.
The search posts are sourced rather than asserted. A survey of search professionals gets reported with the parts that matter picked out, including the observation that if you stop building links your rankings drift back while competitors who keep going move past you.
There is a specific and useful piece on finding duplicate content that damages a site without the owner having any idea.
Then, without warning, come five diet tips that argue against eating six small meals a day, on the grounds that total intake decides the outcome and the timing myth was invented to sell supplements.
Read the accessibility post if you publish video, and the duplicate content one if your site once ranked and quietly stopped.