search for: tag_object

Using the acts_as_taggable plugin, how can I go about finding related tags? ie specify a tag, find objects that have that tag, and then count up its other tags and return say, the top 50 or something, in a method something like Tag.find_related_tags(tag_object) I think the gem has a method like this but the gem hasn''t been updated if I''m not mistaken doesn''t use polymorphic associations like the plugin does. However how to accomplish this by modifying the plugin has eluded me. Any ideas? Perhaps there are other plugins for...