Further to my August 23rd post,
I believe this is the functionality provided by Agendize's white label platform for saving and sharing listings content in various places (IM, email, social networking profile, etc.). YPG partnered with Agendize to bring in this functionality earlier this year.
More on AgendiZe:
By the way, I'm already using Facebook and other social networks for my small business needs
[...] to a multi-platform, value-driven approach, utilizing the Internet, vertical and social networks (yellowpages.ca 's facebook integration) video, voice and mobile devices. The numbers certainly point to the fact the "patient" [...]
by Jonny Ross
April 18th, 2014