Social media star of the moment Pinterest led the news yesterday by announcing that it has officially made the transition from an invitation-only site to one that is open to all interested individuals and businesses. In other words, business owners and PR pros no longer have a legitimate excuse for ignoring this must-have tool.

Following in the footsteps of big brother Facebook, the company hopes to boost their public profile by letting everyone in on the fun. The big question: What does this mean for the rest of us?

Everyone in the world of finance will continue to speculate about Pinterest’s potential as a revenue generator — the site apparently “drives more revenue per click than Twitter or Facebook”, and it has attracted the expected level of attention from investors. But we’re more interested in “Pinterest for Dummies.” Take it away, Business Insider: