Patch Review Process?

I've seen lots of blogs, keynotes, and docs on the process for submitting patches, but I can't really find a write up on how the review process works. Is there a best practice for finding patches pending review other than watching the all mailing lists? I saw the patchwork.kernel.org server can track patches with 'action pending' but I'm not sure if that means it needs review or a maintainer to accept it. -- Andrew D Adamson <andrewdadamson@gmail.com>