For those of you who swear by Mozilla's Firefox and would shrivel up and die if someone pulled the plug on Web 2.0, do I have a new toy for you! Flock, a Mozilla-based web browser that combines the power or social networking with web browsing and RSS is sure to become the next Web 2.0 hit software wildly popular with early adopters. In fact, it's so good, it could very well become the browser of choice for hardcore surfers who love to multi-task.