I to create a site that will let subscribers select items from a list, say of books or DVDs - essentially building a collection that they could then add additional info, e.g. price paid, where purchased, etc. Then if a post is later added that is related to that item, the user would be notified.
My thoughts are to use specific taxonomies for the list of items. And then figure out how I can let users check off their interest in these specific taxonomies and add the additional info. Then essentially subscribe them to posts related to only the taxonomies they are interested in.
Am I off base in my thinking? Is there a better way to do what I am talking about?