How Did We Get Here? The History of sales funnel jobs Told Through Tweets
https://delta-wiki.win/index.php?title=Sales_funnel_upsell:_All_the_Stats,_Facts,_and_Data_You'll_Ever_Need_to_Know
A funnel is usually a tube or pipe that may be extensive at the best and narrow at the bottom, used for guiding liquid or powder into a small opening. Funnels tend to be product of chrome steel, aluminium, glass,