Guide on the Side is a tutorial-building tool developed by the libraries at the University of Arizona.  What sets Guide on the Side (GOTS) apart, is that it puts the instructional material in a frame around the database (or other website) that you are teaching, so that students have their instruction side-by-side with what they are doing.  In “Student See Versus Student Do: A Comparative Study of Two Online Tutorials,” Ilana Stonebraker, M. Brooke Robertshaw and Jennifer D. Moss (Tech Trends pre-print Feb 2016) compare the effectiveness of GOTS with that of a traditional tutorial.  DOI: 10.1007/s11528-016-0026-7