PowerPoint, once the darling of business and school presentations, is slowly but surely giving way to a host of new technologies, particularly those leveraging the power of the Web and web browsers. Even Microsoft has such a product, which it revealed October last year as Sway, which seems like an odd name for a presentation tool. But a Web-based tool is inherently something that can be accessed by more than just one person. Sadly, Sway initially wasn't that. That all changes today with Microsoft announcing collaborative features for Sway.