If you're looking to work with colleagues who might be located in different places, TitanPad might be just the application you require. The application can be customized for a number of different uses, but at its essence it provides a shared space for visitors to coordinate work on documents and to also discuss their work via a specialized chat window. Visitors don't need to sign up, and the site also includes a blog for information about updates and so on. This version is compatible with all operating systems.