Gooro (I assume pronounced as guru) is a specialized search service intended to assist educators in locating content organized by standards and grade level. The app is also intended to assist teachers in individualizing content (iLearn technology).
When I attempted to add this resource to my database, I found the entry was already included. So, this service has been available, but has now been upgraded. To be clear, Gooru relies on content developed elsewhere and layers on the standard tags and assessments to evaluate mastery.