GoodNotes and AirSketch are iPad apps that allow you to draw and annotate but they both have different strengths and weaknesses. This tutorial will walk you through how to create files in GoodNotes, using the superior drawing capabilities, then add them into AirSketch to wirelessly present in class.
Tutorial Link: http://goo.gl/9EXVw
Application: GoodNotes, AirSketch, Dropbox
Tutorial Type: text-based
Price: Various $4.99 – $9.99