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Nuevo Google group (beta)
Google group beta
The Google Groups 2 beta site expands this to allow people to create their own mailing list-based "groups" for free.

The beta site also enhances the ability to interact with Usenet groups. Among the new features are:

Ability to "star" a particular discussion, so it's easy to return and monitor changes via the new My Groups feature.

Ability to receive Usenet discussion posts via email.

Faster posting ability -- posts will appear within minutes, rather than the hours it could sometimes take, Google says.