There should be a way to generate a feed that is updated whenever a new comment needs moderation. Otherwise, it can be hard to remember to check sites, which may rarely get comments.
The feed should not include the comment subject or body, but could mention the author. It would be especially handy if it was generated statically. One way would be to generate internal pages corresponding to each comment that needs moderation; then the feed could be constructed via a usual inline.
See comments feed --liw