Google is really hitting it hard to put itself on the Social Web wagon which is currently being led by Facebook. A question that was recently posted on Quora has a reply to it that says Emerald City has been integrated into numerous Google products and is being actively used internally. Emerald City is the project name for what people outside of Google refer to as “Google Me”.
Google’s other famous products such as Youtube, google docs, Search, Calendar, Groups, Picassa, etc already have a good amount of social web integration. “Emerald Sea” will be launched by Google as a major initiative across it’s multiple services once the internal testing is fully over.