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• proposing and cutting releases
• scheduling
  

There's a private 'PMC list', but it's not to be used as a private mailing list of general discussions for PMC members only, as this is contrary to ASF policy. Instead, it's there to discuss sensitive stuff that needs to be moderately secret. Non-sensitive PMC discussions are held on the dev list. The ASF definition of what lives on the PMC list is: 'issues that cannot be discussed in public, such as discussion of pre-disclosure security problems, pre-agreement discussions with third parties that require confidentiality, discussion of nominees for project or Foundation membership, and personal conflicts among project personnel.'

Advancement

Developers and contributors who contribute too much good code and not enough bad code usually become committers.

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