Memos are composed of a series of pages (up to 300), which may contain:

• text,

• images (JPEG, PNG, PDF, PPT, XLS),

• videos (video URL from a streaming site YouTube, Vimeo, Dailymotion, or MP4 file for face-to-face broadcasting on e.g. Klaxoon Box)

• and of course two types of question: quiz and survey.