Foursquare, the leading location-based social tool, announced a major new initiative last week to expand its location database to include cross-references to corresponding venue listings from other services. As characterized in the announcement post on the company blog, the goal is to make Foursquare the missing "Rosetta Stone for location, allowing you to link information about a real-world place from one database to any other." Now it's not just about using Foursquare, but connecting it to other services.
At its annual F8 developer conference, Facebook yesterday announced the launch of Graph API 3.0 as well as enhanced developer app review. The third version of the company's Graph API contain a number of changes to Facebook Login and the /comments edge and what data is returned.