I recently finished my Intermediate Sensu training course, and wanted
to share it with the group in the least-spammy way possible.
https://www.udemy.com/sensu-introduction/ (intro course, free)
https://www.udemy.com/sensu-intermediate/?couponCode=sensu-users
(intermediate course, 50% off, $50)
At the same time, if you are a configuration management nerd like me,
you will probably appreciate the comparison that I wrote up between
chef/puppet/ansible/salt, particularly in combination with Sensu:
http://www.xkyle.com/a-configuration-management-rosetta-stone-configuring-sensu-with-puppet/