You find video tutorials and more information under following links:
General
Social Commerce by Sellaround
The simpleshow explains: sellaround.net
Selling
What are the Product types?
How to register as publisher?
How to register as private seller?
How to create a physical product widget with Sellaround?
How to create a digital product widget with Sellaround?
How to create a coupon widget with Sellaround?
Find Sellaround elsewhere