A new rival to Wikipedia launched its public beta Sunday.

The wiki encyclopedia was started by Larry Sanger, a co-founder of Wikipedia, according to his own biography.

Anyone who registers with their full name is free to contribute.

But those contributions will be monitored by constables.

These constables (Sanger is one of them) will have the authority to ban inappropriate contributors.

Articles that have been vetted by Citizendium editors and constables are marked as “CZ Live.”

This gives Citizendium control over what’s posted and avoids some of the problems that have plagued Wikipedia.