This “social media R.O.I.” primer has been making its way around the tubes since its debut a few months ago, but really, it can’t be watched enough. If you’ve ever doubted that marketing your brand using social media is worthwhile, this presentation cleverly and precisely shows how a company’s investment of time, effort and money in that shadowy realm of online customer engagement can produce tangible, verifiable returns.

Its creator, Brand Builder’s Olivier Blanchard (not to be confused with this guy) firmly believes that participating in social media increases revenue, and he’s good at explaining why. — he demystifies the process for those who doubt that things like blogging affect the bottom line. So grab the nearest Twitter hater (i.e., your boss), and click the right arrow in the embedded presentation below to advance the slides.

Blanchard’s Tumblr contains even more demonstrations of how social media pays off.

Bonus: If you can identify the ’70s TV/movie images used in the presentation, you can start your own pop-culture blog!