Friday Link Wrapup

The top website and marketing links for this week.

9 things you need to know about Google’s mobile-friendly algorithm changes coming up on April 21.

Link-building today is very different than before Penguin in 2012. Read about the smart alternatives to what are now considered dangerous link-building strategies.

Frito-Lay’s custom  project proofing/management app is built on WordPress. Yes it is.

How to pick the best fonts for logos and branding.

Finally, don’t just let your blog’s old content get forgotten. Here are six ways to promote old, under-appreciated blog content.