For anyone looking for a friendly introduction to spatial analysis using ArcGIS Online, Esri's free Going Places with Spatial Analysis massive open online course (MOOC) opens on February 1 and runs through March 15. The course includes access to ArcGIS Online and hands-on exercises that guide you through the basics to more advanced analysis projects. Everyone who completes all six sections gets a certificate of completion.
Hope to see you there! Sign up at https://bit.ly/2SzUxlP.