There are dozens of national/international organizations out there for non-religious people. For a newcomer to the scene, it’s often hard to keep track of which groups there are and how they are connected to each other.
August Brunsman, Executive Director of the Secular Student Alliance, made a chart (a first draft, anyway) to help you out. Click on the image below to see it in full size:

And now it all makes sense, right?
This chart will go through a few more machinations, I’m sure. But it just goes to show the complexities within the secular movement and why it’s often difficult to get the organizations to work together on anything. Everyone has their own niche.
However, as you can see, the Secular Coalition for America is a good start to bring about some unity! Hopefully, more groups will want to join that coalition in the future.
[tags]atheist, atheism, August Brunsman, Secular Student Alliance, Humanist, Secular Coalition for America, Center for Inquiry, gliffy[/tags]