David,
These are good suggestions. Since I'd like to allow users to rate objects in more than one dimension (e.g. "is this forum good for XML knowledge" and "are the people on this forum helpful") I think the table we'll be updating on a trigger would be a general-ratings-summary map table that would associate the object with a dimension and then with the summary info.
The number of page reads doesn't feel like part of the ratings package to me. Isn't there someplace in the request dispatcher that could audit this information?
