[Analemma_]

To be blunt, your efforts to improve corporate behavior are better spent elsewhere.

The fact that boycotts never work isn't just a moral shame in the abstract; it has real, practical policy implications. It's one of the main reasons why I'm dismissive of libertarianism and its conviction that government regulation is unnecessary because consumer behavior will fix wrongdoings.

You say you want to build a platform to organize boycotts, but consider: your network can't possibly become larger than Facebook (with 2 billion users), and I see constant attempts on Facebook to organize boycotts, to no effect. There's nothing you can do to significantly improve on this outcome.

Honestly, if you really want businesses to behave better, your best ROI would come from advocacy both in favor of more government transparency, and against libertarianism (especially among developer-types, where it has spread like a highly unfortunate mind virus).