RTMark (derived from "Registered Trademark") is an activist collective that subverts the "Corporate Shield" protecting US corporations.
RTMark is itself a registered corporation which brings together activists who plan projects with donors who fund them. It thus operates outside the laws governing human individuals, and benefits from the much looser laws governing corporation. 
What does ®TMark do?
®TMark receives project ideas from internet users, then lists them (here). Each listed project has its own discussion list (linked from the project). When a project requires a bit of funding to be accomplished, sometimes investors will step up to the plate and offer their help. Even more often, people will offer non-financial help or feedback.
How is ®TMark defined, in legal terms?
®TMark is a brokerage that benefits from «limited liability» just like any other corporation; using this principle, ®TMark supports the sabotage (informative alteration) of corporate products, from dolls and children's learning tools to electronic action games, by channelling funds from investors to workers for specific projects grouped into "mutual funds."
So ®TMark is just a corporation?
®TMark is indeed just a corporation, and benefits from corporate protections, but unlike other corporations, its ‹bottom line› is to improve culture, rather than its own pocketbook; it seeks cultural profit, not financial.