1. Google is now clearly identifying mobile-friendly sites in its search results. While Google’s search algorithm remains a well-kept secret, it’s not a stretch to infer that sites that perform well on mobile will index better for its search.
2. Wasting time on Facebook at work is a popular pastime, even if you have to access it stealthily on your smartphone. Quartz reports on a new project called Facebook at Work. This would put Facebook head-to-head with LinkedIn for professional networking, and gain a foothold in the coveted productivity and collaboration space.
3. Planning and delivering effective client presentations isn’t as easy as it looks. Watch out for these 13 ways designers can screw them up.
4. Early Twitter adopters beware: now you can search every tweet ever sent. The demise of many popular link shorteners means you may not, however, be able to follow all those links.
5. Although Wikipedia remains the 6th largest site on the internet, a daunting bureaucratic culture around the rules make it a black box for prospective contributors. Communications professionals are particularly flummoxed on what’s fair game and what’s not — this free ebook aims to change all that.

Weekend fun: A book on computer engineer Barbie, who used her subpar coding skills to make cute puppies, was not Mattel’s finest hour. However, the responses brought out the best of the internet.

Every Friday, find five, highly subjective pointers to compelling technologies, emerging trends, and interesting ideas that affect how we live and work digitally. Try out the Friday 5 archive, or sign up for a weekly email.