Wookie is a project that creates open specifications and open source software for adding widgets to your applications. [able to do real-time updates too]
Fast and Easy online tool for mockup screens, UI web design and Wireframes for websites, web pages, desktop applications screens and interface designs. Tons of UI elements, Free webpage layout design templates and built-in collaboration and publishing of
Atlassian is a global software company that provides enterprise software solutions to the world's leading organisations. Our mission is to build a different kind of software company - one that listens to client needs, values innovation in development and solves customer problems with brilliant simplicity. Atlassian is the creator of the highly popular issue tracking, project management application JIRA.