Authors:

Dealing with ads is depressing. You don’t make anyone’s life better by making advertisements work better.

"Exclusive: The Rags-To-Riches Tale Of How Jan Koum Built WhatsApp Into Facebook's New $19 Billion Baby" by Parmy Olson, www.forbes.com. February 19, 2014.
Dealing with ads is depressing. You don’t make anyone’s life better by making advertisements work better.