Show and Tell Infobox|Featured image=[[File: Knowledge-tracking.jpg|frameless|250px]] | Date= 2011/08/24 |Event name= New York Meetup |Slides= | Show and Tell Infobox|Featured image=[[File: Knowledge-tracking.jpg|frameless|250px]] | Date= 2011/08/24 |Event name= New York Meetup |Slides= |