The web designers who designed the WatsonPaths diagrams that were probably already intimately familiar with the same type of diagram in Google Analytics:<p><a href="http:&#x2F;&#x2F;www.webs9.com&#x2F;wp-content&#x2F;uploads&#x2F;2012&#x2F;10&#x2F;Social_visitors_flow.png" rel="nofollow">http:&#x2F;&#x2F;www.webs9.com&#x2F;wp-content&#x2F;uploads&#x2F;2012&#x2F;10&#x2F;Social_visit...</a>