Martin
Anderson-Clutz
Northern (aka Digital Echidna)
For many sites, internal search is critical functionality and heavily relied upon by visitors. But often, there's little consensus about how and when to test the quality of results, or the best ways to optimize the results on an ongoing results. I have specific example to share that relate to Drupal and Solr, but intend to discuss principles that should apply more broadly to a variety of technologies.