http://en.wikipedia.org/wiki/Point_of_sale
http://www.salespointadvisors.com/
http://www.posmatic.com/
https://www.posist.com
HQ
https://www.lightspeedhq.com/
https://www.vendhq.com/
Tube
https://www.youtube.com/results?search_query=point+of+sale
Slides
https://www.slideshare.net/search/slideshow?searchfrom=header&q=point+of+sale
http://www.salespointadvisors.com/
http://www.posmatic.com/
https://www.posist.com
HQ
https://www.lightspeedhq.com/
https://www.vendhq.com/
Tube
https://www.youtube.com/results?search_query=point+of+sale
Slides
https://www.slideshare.net/search/slideshow?searchfrom=header&q=point+of+sale
