In our new series, The Online Sales Funnel, which we'll be working on over the coming weeks, we look into the sales and marketing tool that's revolutionized e-commerce, the Online Sales Funnel.

In Part 1 we look at where the idea of Sales Funnels came from, what a Sales Funnel is, and an overview of how the Internet and new online tools have revolutionized it with automation options.

Sources
1- https://en.wikipedia.org/wiki/Sales_process_engineering
2- https://ohiostatepress.org/books/Complete%20PDFs/Nelson%20Mental/05.pdf
3- http://www.marketing-schools.org/types-of-marketing/interactive-marketin...
4- http://www.economist.com/node/13051591
5- http://worldcat.org/identities/lccn-no96055444/