I'm sure this is a dumb question, but hopefully someone will humor me. How do I mimic the exposed filter for group type select on http://groups.drupal.org/groups? Is it a Content Taxonomy field, or something else?
Answer: With Views Module, Turn "Exposed form in blocks" to yes, then enable Block. See this page: http://civicactions.com/blog/2009/apr/28/views_filter_blocks_drupal_6