Both Google Analytics and Webmaster Tools have built in +1 reporting now. This will make tracking +1 activity a bit easier. Obviously, Google +1 isn’t the only game in town when it comes to social sharing. Google Analytics also provides a few social reports, these will help you track how people are sharing your content across different social mediums.
Care for a giant game of Risk? Enter World of Fourcraft, which uses Foursquare to turn the five boroughs of New York into a sort of virtual board game. Looks like a good reason to start checking in with Foursquare again.
Greg Laugero has an excellent writeup on Matching Requirements with User Experience at Johnny Holland Magazine. His examples of enhancing requirements, which are often incomplete, with interaction design tools, such as user stories, during the design phase are great. This is a good read not only for those who are charged with meeting requirements, but also the people writing the requirements.
The NYCMate application (available for iPhone and Android) has a NextTrain feature, which uses phone data to predict subway arrival times. It does so by analyzing when its users lose signal when going underground. According to this article, the system will need about 10,000 of NYCMate’s 600,000 users to turn on the NextTrain feature to get an accurate view of what is happening with the trains in Manhattan.