This is a very interesting marketing example. Google is not just describing features, but helping the user build a need. They took the spam problem, which most

This is a very interesting marketing example. Google is not just describing features, but helping the user build a need. They took the spam problem, which most execs would view as a simple annoyance, and made a tool to translate that annoyance to monetary losses. Sometimes the best way to sell your product is to lead the user to the need, even if they don't realize they need it in the first place.