Catch my post on tuning Slow queries over at the MPR developer blog:
Packt Publishing has released three mini-books on Drush, Multi-site , and Multilingual Drupal Sites at. http://www.packtpub.com/news/new-drupal-mini-books.
From the table of contents it looks like these dig deep. The Drush mini-book gets into customizing and extending Drush. The multi-site mini book gets into advanced topics like using vagrants and single sign ons.
I hope to post a review before too long.
; Drupal core version core = 7.x projects = drupal ; Drush make API version api = 2 ;contrib modules projects = views projects = "ctools" projects[inline_comments][version] = "1.0-beta2" projects = featuresSpecifying