The Mozilla-based Flock web browser has finally reached v1.0 status, its developers have announced. Although very similar in functionality to Firefox, Flock concentrates on Web 2.0 services, integrating sites such as Flickr through items like a filmstrip minibar. Flock 1.0 adds a "People" sidebar to the browser, which in turn allows users to integrate Facebook and Twitter; this not only allows users to see what friends are doing, but to be notified when they update their pages, and communicate from a central location. Photos and videos can likewise be dragged-and-dropped to friends for sharing. Other changes include stability and performance improvements, such as the elimination of several memory leaks. Flock is available for Mac, Windows and Linux systems.