Openism

I call openism a way to fight a closed system by opposing an open system doing the same job.

A simple example wikipedia :

Wikipedia is an openism action against the closed encyclopedic system. Wikipedia is open as anybody may improve it while a classical encyclopedic system allow only a limited and allowed number of personns to improve it.

As a conscequence wikipedia is more up-to-date and richer than any closed encyclopedic system. Those old closed systems are just going to disappear now.

This concept lead me to ask new questions :

Which other openism action could we list ?

What's needed for an openism action ?

What will be the next big closed system openism will attack ?