An advanced search page that filters all content by all possible criteria
Would like a way to do complex searches that span a variety of criteria. For example: all groups or users with a specific topic, or all wiki pages edited since a certain date.
The advanced search would expose nearly all the filter available and let users do it their way.

This feature, or as close as we can currently come to it, has been added with the deployment of our new Drupal 7 site. Please see: https://www.hastac.org/search/site