Open Atrium lets you coordinate on projects with the people you work with – whether that’s to facilitate programs around the world for an international organization, to organize the communications outreach for an advocacy campaign, or to run out simultaneous projects for a software development company. Out of the box you can create different spaces for different projects, add people to each space, and turn on different tools within each space, including a blog, a wiki, a calendar, a casetracker, and a micro blog.